KR102724933B1 - Cwdm transmit/receive module for ultra high resolution image transmission and operating method of the same - Google Patents

Abstract

In accordance with the present invention, a CWDM transmission/reception module for ultra-high-resolution image transmission of an image source device and a display device comprises: a CWDM transmission module which receives an image signal from the image source device, emits an optical signal from a plurality of light sources based on the received image signal, combines the optical signals respectively emitted from the plurality of light sources into a single light, connects the combined optical signals to an optical cable, and transmits the optical signal to the display device using the optical cable; and a CWDM reception module which receives the optical signal in the form of a single light from the optical cable, divides the received optical signal, guides the divided signal to a plurality of light sources, converts the optical signal into the image signal, and transmits the converted optical signal to the image source device.

Description

CWDM TRANSMIT/RECEIVE MODULE FOR ULTRA HIGH RESOLUTION IMAGE TRANSMISSION AND OPERATING METHOD OF THE SAME

The present invention relates to a CWDM transmission/reception module for ultra-high-resolution image transmission, and more specifically, to a CWDM transmission/reception module for ultra-high-resolution image transmission capable of miniaturizing the transmission/reception module by arranging a plurality of light sources in a horizontal structure, and providing ultra-high-resolution images without signal distortion and delay time by being connected to a single optical cable based on a CWDM filter, and an operating method thereof.

Recently, video technologies such as DVI (Digital Visual Interface), HDMI (High Definition Multimedia Interface), and Display Port are supporting UHD (Ultra High Definition) resolution beyond Full HD resolution. As the display resolution increases, the transmission bandwidth is also increasing significantly. Therefore, an optical video transmission technology that enables long-distance transmission and secures sufficient transmission speed is required.

Conventional optical image transmission technology used copper wires to transmit image signals. However, for Full HD-level image signals, the maximum distance that can be transmitted via copper wires is about 4.5 m. In other words, image signal transmission using copper wires can cause problems such as limited transmission distances and EMI (Electro Magnetic Interference), which causes interference in signal reception due to noise, due to increased information resolution and higher data capacity.

In order to improve these conventional problems, image signals were converted into optical signals and transmitted through multimode optical fibers based on VCSELs (Vertical Cavity Surface Emitting Lasers). In addition, a method of transmitting image signals in the form of a hybrid active optical cable (AOC) that combines optical cables and copper wires has been developed. However, although the hybrid active optical cable type can support a maximum transmission distance of 100 m, it has the problem of being bulky because it must have the same cable diameter as the copper wire. In addition, the cable type product has the limitation that the entire cable must be collected and reburied if a problem occurs in the laser diode and light receiving element after burial. In addition, since the transmission speed of the hybrid active optical cable type is limited by the optical element, it must be reburied even if the resolution of image display devices such as media players, TVs, and electronic billboards increases. To address these issues, modular or box-type products that allow for the replacement of light sources and receivers have been used, but signal loss occurs due to extended copper cables, making it realistically impossible to transmit high-resolution images.

Recently, 6-wavelength CWDM (Coarse Wavelength Division Multiplexing) technology, which can transmit high-resolution images without signal distortion or delay through a single optical cable, is attracting attention. 6-wavelength CWDM consists of an optical module composed of 4 high-speed channels and 2 low-speed channels. However, since 6-wavelength CWDM has optical loss due to its characteristics, the characteristics of the optical transceiver change, and it is difficult to secure sufficient bandwidth per high-speed channel. In addition, since the low-speed channel of 6-wavelength CWDM is structured so that it cannot use a separate driver or TIA, it is virtually impossible to secure sufficient communication speed. In addition, since a certain space is required when performing an individual optical alignment process for 6 wavelengths, there is a problem that the size of the module cannot be reduced.

Therefore, there is a need to develop a technology that can transmit ultra-high-resolution images over long distances using a single optical cable without signal distortion, secure sufficient transmission speed, and enable product miniaturization.

The technical problem to be achieved by the present invention relates to a CWDM transmission/reception module capable of providing ultra-high resolution images without signal distortion and delay time by being connected to a single optical cable based on a CWDM filter, and an operating method thereof.

In addition, the technical problem to be achieved by the present invention relates to a CWDM transmission/reception module and an operation method thereof, which enables miniaturization by facilitating high-speed line design of a PCB board by providing a plurality of light sources in a straight horizontal structure and simultaneously performing optical alignment.

In addition, the technical problem to be achieved by the present invention relates to a CWDM transmission/reception module and an operation method thereof capable of minimizing optical path deviation by designing a housing and a mounting structure for fixing a CWDM filter and mirror so as not to affect the optical path.

In addition, the technical problem to be achieved by the present invention relates to a CWDM transmission/reception module and its operation method, which can secure a certain space based on a CWDM filter and mirror, and can improve density and miniaturize by mounting a chip in the secured space.

In addition, the technical problem to be achieved by the present invention relates to a CWDM transmission/reception module and an operation method thereof capable of minimizing assembly tolerance by forming elements constituting a housing by injection molding at one time using the same material.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

In order to achieve the above-described technical problem, according to one embodiment of the present invention, a CWDM transmission/reception module for ultra-high-resolution image transmission of an image source device and a display device may include a CWDM transmission module which receives an image signal from the image source device, emits an optical signal from a plurality of light sources based on the received image signal, combines the optical signals respectively emitted from the plurality of light sources into a single light, connects the combined optical signals to an optical cable, and transmits the optical signal to the display device using the optical cable; and a CWDM reception module which receives the optical signal in the form of the single light from the optical cable, divides the received optical signal and guides it to a plurality of light sources, and converts the optical signal into the image signal and transmits it to the image source device.

The above CWDM transmission module may include a transmission module light source unit that converts the image signal into the optical signal by emitting the optical signal through a plurality of light sources provided at regular intervals; a transmission module mirror unit that reflects and guides the optical signal emitted from the transmission module light source unit; and a transmission module filter unit that filters and combines the optical signal by transmitting and reflecting it and connects it to the optical cable.

The CWDM receiving module may include a receiving module filter unit that receives the optical signal from the optical cable and divides the received optical signal by reflecting and transmitting it; a receiving module mirror unit that divides the optical signal by reflecting it and guides it to a plurality of light sources; and a receiving module light source unit that receives the divided optical signal, converts it into the image signal, and transmits it to the display device.

The above-described transmission module light source section includes a first transmission module light source to a sixth transmission module light source, wherein the first transmission module light source is a light source for two-way communication and is a photodiode that receives the optical signal and converts it into the image signal, and the second transmission module light source to the sixth transmission module light source are VCSELs (Vertical Cavity Surface Emitting Lasers) that emit a laser in a direction perpendicular to the upper surface and can convert the received image signal into the optical signal.

The above-described transmission module mirror section may include a first transmission module mirror section that is provided with a large area above the transmission module light source section with respect to the ground, and horizontally reflects and guides the optical signal emitted from the second transmission module light source to the sixth transmission module light source, and vertically reflects and guides the optical signal guided in the horizontal direction toward the first transmission module light source; a second transmission module mirror section that guides the optical signal input from the optical cable toward the first transmission module mirror section; and a third transmission module mirror section that reflects and guides the optical signal of the sixth transmission module light source reflected by the first transmission module mirror section.

The above transmission module filter unit includes a first transmission module filter unit to a fifth transmission module filter unit that reflect and transmit the incident optical signal, wherein the first transmission module filter unit reflects the optical signal of the second transmission module light source reflected from the first transmission module mirror unit toward the second transmission module filter unit, the second transmission module filter unit reflects the optical signal incident by the first transmission module filter unit toward the fifth transmission module filter unit, and transmits the optical signal of the third transmission module light source reflected from the first transmission module mirror unit toward the fifth transmission module filter unit, the third transmission module filter unit receives the optical signal of the sixth transmission module light source reflected from the third transmission module mirror unit and transmits it toward the fourth transmission module filter unit, and reflects the optical signal of the fifth transmission module light source reflected from the first transmission module mirror unit toward the fourth transmission module filter unit, and the fourth transmission module filter unit transmits the optical signal transmitted by the third transmission module filter unit to the The optical signal of the fourth transmission module light source transmitted through the fifth transmission module filter section and reflected from the first transmission module filter section is reflected to the fifth transmission module filter section, and the fifth transmission module filter section transmits the optical signal transmitted through the second transmission module filter section to the optical cable section and reflects the optical signal transmitted through the fourth transmission module filter section to the optical cable section, thereby combining the second transmission module light source to the sixth transmission module light source and connecting them through the optical cable.

The second transmission module mirror section, the first transmission module filter section and the second transmission module filter section are provided in a horizontal structure, the fifth transmission module filter section, the fourth transmission module filter section, the third transmission module filter section and the third transmission module mirror section are provided in a horizontal structure, the second transmission module filter section and the fifth transmission module filter section are provided in a straight structure with the third transmission module light source, and the second transmission module filter section can be positioned between the fifth transmission module filter section and the third transmission module light source.

The present invention may further include a transmission module filter fixing housing part that surrounds the edges of the second transmission module mirror part, the third transmission module mirror part, and the first transmission module filter part to the fifth transmission module filter part, and is formed with a structure in which the front and back are open so as not to obstruct the light path; a transmission module lower housing part that has a lens array designed to correspond to the transmission module light source part, and that receives both ends of the first transmission module mirror and receives the lower end of the transmission module filter fixing housing part so as to be fixed; and a transmission module upper housing part that is connected to the transmission module lower housing part and secures the upper end of the transmission module filter fixing housing part.

The above-described receiving module light source section includes a first receiving module light source to a sixth receiving module light source, wherein the first receiving module light source is a VCSEL (Vertical Cavity Surface Emitting Laser) that emits a laser in a direction perpendicular to an upper surface for two-way communication and converts the received image signal into the optical signal, and the second receiving module light source to the sixth receiving module light source may be a photodiode that receives the optical signal and converts it into the image signal.

The above-described receiving module mirror unit may include a large area provided above the receiving module light source unit with respect to the ground, and may vertically reflect the optical signal guided in the horizontal direction from the optical cable and guide it toward the second receiving module light source to the sixth receiving module light source, the first receiving module mirror unit reflecting and guiding the optical signal emitted from the first receiving module light source in the horizontal direction; a second receiving module mirror unit reflecting and guiding the optical signal of the first receiving module light source reflected by the first receiving module mirror unit; and a third receiving module mirror unit guiding the optical signal input from the optical cable toward the first receiving module mirror unit.

The above-described receiving module filter unit includes a first receiving module filter unit to a fifth receiving module filter unit that reflect and transmit the incident optical signal, wherein the first receiving module filter unit reflects the optical signal reflected and transmitted by the second receiving module filter unit toward the first receiving module mirror unit, the second receiving module filter unit reflects the specific optical signal from the optical signal transmitted by the fifth receiving module filter unit toward the first receiving module mirror unit, and reflects optical signals other than the specific optical signal toward the first receiving module filter unit, the third receiving module filter unit reflects the specific optical signal from the optical signal transmitted by the fourth receiving module filter unit toward the first receiving module mirror unit, and transmits the optical signals other than the specific optical signal to the third receiving module mirror unit, and the fourth receiving module filter unit reflects the specific optical signal transmitted by the fifth receiving module filter unit toward the first receiving module mirror unit, and transmits the optical signals other than the specific optical signal to the third receiving module. The optical signal is transmitted through the filter section, and the fifth receiving module filter section reflects the specific optical signal of the optical signal input from the optical cable to the fourth receiving module filter section, and optical signals other than the specific optical signal are transmitted through the second receiving module filter section, thereby splitting the optical signal.

The second receiving module mirror unit, the first receiving module filter unit and the second receiving module filter unit are provided in a horizontal structure, the fifth receiving module filter unit, the fourth receiving module filter unit, the third receiving module filter unit and the third receiving module mirror unit are provided in a horizontal structure, the second receiving module filter unit and the fifth receiving module filter unit are provided in a straight line structure with the third receiving module light source, and the second receiving module filter unit can be located between the fifth receiving module filter unit and the third receiving module light source.

The method may further include: a receiving module filter fixing housing section that surrounds the edges of the second receiving module mirror section, the third receiving module mirror section, and the first to fifth receiving module filter sections, and is formed with a structure in which the front and back are open so as not to obstruct the light path; a receiving module lower housing section that has a lens array designed to correspond to the receiving module light source section, and that receives both ends of the first receiving module mirror and receives the lower end of the receiving module filter fixing housing section so as to be fixed; and a receiving module upper housing section that is connected to the receiving module lower housing section and fixes the upper end of the receiving module filter fixing housing section.

A block filter section that transmits the specific optical signal guided to the above-described receiving module light source section and reflects the optical signal other than the specific wavelength; a block filter mounting section for mounting the block filter is further included between the receiving module light source section and the lower housing section of the permanent receiving module, and the block filter mounting section is formed in a shape in which the center is open and is separated into upper and lower housings, and a joining structure is formed at the lower ends on both sides of the block filter mounting section so as to be connected to a substrate for protection.

In addition, in order to achieve the technical problem described above, in an embodiment of the present invention, a method for operating a CWDM transmission/reception module for ultra-high-resolution image transmission of an image source device and a display device, the CWDM transmission/reception module includes a CWDM transmission module that receives an image signal from the image source device and transmits the optical signal to the display device using an optical cable, and a CWDM reception module that receives the optical signal in the form of a single light from the optical cable, converts the optical signal into the image signal, and transmits the image signal to the display device, wherein a) the CWDM transmission module receives the image signal from the image source device, converts the received image signal into the optical signal based on a plurality of light sources, and emits the optical signal of a specific wavelength; b) the CWDM transmission module transmits and reflects the optical signal, which is emitted from each of the plurality of light sources and is divided, based on a mirror and a filter to combine the optical signal into a single light; c) the CWDM transmission module connects the combined optical signal to the optical cable and transmits it; d) a step in which the CWDM transmitting module receives the optical signal in the form of a single light from the optical cable; e) a step in which the CWDM receiving module divides the optical signal received by transmitting and reflecting it based on the mirror and the filter; d) the CWDM receiving module can receive the divided optical signal from a plurality of the light sources, convert the optical signal into the image signal, and provide it to the display device.

According to an embodiment of the present invention, the split optical signals emitted from each light source can be combined into a single optical signal using a CWDM filter and a mirror. In addition, each light source can receive the split optical signal based on the CWDM filter and the mirror. Therefore, by being connected with a single optical cable, an ultra-high resolution image can be provided to the display without signal distortion and delay time.

In addition, according to an embodiment of the present invention, simultaneous optical alignment can be performed by arranging multiple light sources in a straight horizontal structure. This solves the problem that it is difficult to miniaturize due to a certain space required when individually aligning each light source in the past. In addition, it is advantageous in designing a high-speed line by greatly reducing the deviation between the length of the optical path and the length of the PCB line.

In addition, according to an embodiment of the present invention, a housing that encloses a CWDM filter and a mirror unit may be included. The housing is designed so as not to affect the light path by being formed in a form in which the front and back are open. In addition, since the housing can be fixed by a mounting structure, light can be transmitted without signal distortion even when subjected to external impact.

In addition, according to an embodiment of the present invention, a certain space can be secured by combining and dividing an optical signal based on a CWDM filter and mirror section. At this time, the density can be improved by mounting a chip in the secured space. Accordingly, the module can be miniaturized.

In addition, according to an embodiment of the present invention, the elements constituting the housing can be formed by injection molding using the same material at one time. This makes it possible to minimize tolerances that occur when designing and assembling each element using different materials.

It should be understood that the effects of the present invention are not limited to the effects described above, and include all effects that can be inferred from the composition of the invention described in the description or claims of the present invention.

Figure 1 is a drawing illustrating a CWDM transmission module according to an embodiment of the present invention.
FIG. 2 is a drawing showing the arrangement of elements constituting a CWDM transmission module according to an embodiment of the present invention.
FIG. 3 is a diagram illustrating a CWDM receiving module according to an embodiment of the present invention.
FIG. 4 is a drawing showing the arrangement of elements constituting a CWDM receiving module according to an embodiment of the present invention.
FIG. 5 is a diagram illustrating a method in which a CWDM transmission module according to an embodiment of the present invention operates.
FIG. 6 is a diagram illustrating a method in which a CWDM receiving module according to an embodiment of the present invention operates.

Hereinafter, the present invention will be described with reference to the attached drawings. However, the present invention can be implemented in various different forms, and therefore is not limited to the embodiments described herein. In addition, in order to clearly describe the present invention in the drawings, parts that are not related to the description are omitted, and similar parts are assigned similar drawing reference numerals throughout the specification.

Throughout the specification, when a part is said to be "connected (connected, contacted, joined)" to another part, this includes not only the case where it is "directly connected" but also the case where it is "indirectly connected" with another member in between. Also, when a part is said to "include" a certain component, this does not mean that other components are excluded, unless otherwise specifically stated, but that other components can be included.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. As used herein, the terms "comprises" or "has" and the like are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the specification, but should be understood to not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the attached drawings.

Figure 1 is a drawing illustrating a CWDM transmission module according to an embodiment of the present invention.

Referring to FIG. 1, the CWDM transmission module (100) may include a transmission module light source unit (110), a transmission module mirror unit (120), and a transmission module filter unit (130). Here, the transmission module light source unit (110) may include a plurality of light sources (111, 112, 113, 114, 115, 116) arranged at regular intervals. The transmission module light source unit (110) is designed to have a straight (horizontal) structure, thereby facilitating high-speed line design of a PCB substrate (P), and at the same time, optical alignment is possible, which is advantageous for miniaturization. For example, the first transmission module light source (111) may be composed of a photodiode having a wavelength of 1,005 nm. An optical signal may be converted into an image signal based on the first transmission module light source (111). The CWDM transmission module (100) may include a receiving light source for two-way communication.

The second transmission module light source (112) to the sixth transmission module light source (116) are configured as VCSELs (Vertical Cavity Surface Emitting Lasers) and can generate light signals having specific wavelengths. For example, the second transmission module light source (112) can emit a light signal having a wavelength of 960 nm, the third transmission module light source (113) can emit a light signal having a wavelength of 915 nm, and the fourth transmission module light source (114) can emit a light signal having a wavelength of 780 nm, the fifth transmission module light source (115) can emit a light signal having a wavelength of 825 nm, and the sixth transmission module light source (116) can emit a light signal having a wavelength of 870 nm.

In addition, the second transmission module light source (112) to the sixth transmission module light source (116) are driven by VCSELs, which are semiconductor lasers that emit lasers in a direction perpendicular to the upper surface, so that data is not distorted and optical signals can be implemented at a high speed.

The transmission module mirror unit (120) can reflect the optical signal emitted from the transmission module light source unit (110). For example, the first transmission module mirror unit (121) is provided on the upper side of the transmission module light source unit (110) and can reflect the optical signal emitted in a vertical direction from the upper surface of the transmission module light source unit (110) at a specific angle. At this time, the first transmission module mirror unit (121) can be formed over a large area to reflect the optical signal emitted from the transmission module light source unit (110). In addition, the first transmission module mirror unit (121) can be designed to guide the optical signal at a specific angle.

Meanwhile, the second transmission module mirror unit (122) can reflect an optical signal input from an optical cable toward the first transmission module mirror unit (121). The optical signal incident on the second transmission module mirror unit (122) is an optical signal filtered by the fifth transmission module filter unit (132c), the second transmission module filter unit (131b), and the first transmission module filter unit (131c). Here, the light reflected by the second transmission module mirror unit (122) can be guided to the first transmission module light source (111) by the first transmission module mirror unit (121). At this time, the first transmission module light source (111) can receive the guided optical signal.

Meanwhile, the third transmission module mirror unit (123) can reflect the optical signal reflected from the first transmission module mirror unit (121). Here, the third transmission module mirror unit (123) can guide the optical signal at a specific angle by reflecting the optical signal. The third transmission module mirror unit (123) can reflect the optical signal of the sixth transmission module light source (116) reflected through the first transmission module mirror unit (121) at a specific angle. As will be described later, the third transmission module mirror unit (123) can reflect the optical signal toward the third transmission module filter unit (132a).

In addition, the transmission module filter unit (130) can filter by transmitting and reflecting an optical signal. For example, the transmission module filter unit (130) can include a CWDM filter. A CWDM (Course Wave Division Multiplexing) filter is a low-density wavelength division multiplexing that multiplexes a plurality of optical signals using an optical device. That is, the transmission module filter unit (130) can combine optical signals of different wavelengths based on the CWDM filter. Here, the first transmission module filter unit (131a) and the second transmission module filter unit (131b) can be provided at a constant interval at a straight-line distance from the second transmission module mirror unit (122). In addition, the interval between the second module transmission module mirror unit (122), the first transmission module filter unit (131a), and the second transmission module filter unit (131b) may correspond to the interval between the first transmission module light source (111), the second transmission module light source (112), and the third transmission module light source (113). Meanwhile, the third transmission module filter unit (132a), the fourth transmission module filter unit (132b), and the fifth transmission module filter unit (132c) may be provided at a constant interval at a straight-line distance from the third transmission module mirror unit (123). Here, the third transmission module filter unit (132a), the fourth transmission module filter unit (132b), the fifth transmission module filter unit (132c), and the third transmission module mirror unit (123) may correspond to the intervals between the third transmission module light source (113), the fourth transmission module light source (114), the fifth transmission module light source (115), and the sixth transmission module light source (116). In addition, the second transmission module mirror unit (122), the first transmission module filter unit (131a), and the second transmission module filter unit (131b) may correspond to the intervals between the third transmission module filter unit (132a), the fourth transmission module filter unit (132b), the fifth transmission module filter unit (132c), and the third transmission module mirror unit (123) more than the third transmission filter unit (132a), the fourth transmission filter unit (132b), the fifth transmission module filter unit (132c), and the third transmission module mirror unit (123). The second transmission module filter unit (131b) and the fifth transmission module filter unit (132c) may be positioned close to the third transmission module light source (113). Here, the transmission module light source unit (110), the transmission module mirror unit (120), and the transmission module filter unit (130) may be designed so as not to affect the optical path. That is, the CWDM transmission module (100) is designed to have the same optical path in a straight horizontal structure, making it easy to design a high-speed signal.

Meanwhile, the first transmission module filter unit (131a) can reflect the light signal of the second transmission module light source (112) reflected from the first transmission module mirror unit (121) at a specific angle. For example, the first transmission module filter unit (131a) can reflect the light signal toward the second transmission module filter unit (131b). In addition, the second transmission module filter unit (131b) can reflect the light signal reflected from the first transmission module filter unit (131b) at a specific angle. In addition, the second transmission module filter unit (131b) can transmit the light signal of the third transmission module light source (113) reflected from the first transmission module mirror unit (121). That is, the second transmission module filter unit (131b) can combine the respective divided light signals of the second transmission module light source (112) and the third transmission module light source (113). In addition, by securing space at the bottom of the second transmission module mirror section (122), the first transmission filter section (131a), and the second transmission filter section (131b), it is possible to mount the chip (C). As a result, the CWDM transmission module (100) can be miniaturized.

In addition, the third transmission module filter unit (132a) can pass the optical signal reflected from the third transmission module mirror unit (123) and reflect the optical signal of the fifth transmission module light source (115) reflected from the first transmission module mirror unit (121). In addition, the fourth transmission module filter unit (132b) can pass the optical signal transmitted and reflected from the third transmission module filter unit (132a) and reflect the optical signal of the fourth transmission module light source (114) reflected from the first transmission module mirror unit (121). In addition, the fifth transmission module filter unit (132c) can reflect the optical signal transmitted and reflected from the fourth transmission module filter unit (132b) and transmit the optical signal transmitted and reflected from the second transmission module filter unit (131b). That is, the fifth transmission module filter unit (132c) can combine the optical signals emitted from the second transmission module light source (112) to the sixth transmission module light source (116) into a single optical signal.

FIG. 2 is a drawing showing the arrangement of elements constituting a CWDM transmission module according to an embodiment of the present invention.

As illustrated in FIG. 2, the CWDM transmitter module may include a transmitter module lower housing portion (150) and a transmitter module upper housing portion (160).

First, the lower housing part (150) of the transmitter module may include a transmitter module lens array part (151), a transmitter module mirror mounting part (152), and a transmitter module filter fixing housing mounting part (153). Here, the lower housing part (150) of the transmitter module may be formed by injection molding the transmitter module lens array part (151), the transmitter module mirror mounting part (152), and the transmitter module filter fixing housing mounting part (153) using the same material at one time. Accordingly, the tolerance caused by designing and assembling the conventional transmitter module lens array part (151), the transmitter module mirror mounting part (152), and the transmitter module filter fixing housing mounting part (153) using different materials may be minimized. The lens of the transmitter module lens array part (151) may be designed to correspond to the lens of the transmitter module light source part. For example, the number and spacing of the light sources constituting the transmitter module light source part may correspond to the number and spacing of the light sources. The transmission module lens array unit (151) can be designed to maintain an optimal focal distance for light emitted from the transmission module light source unit.

In addition, the transmission module mirror mounting portion (152) can be mounted so that the first transmission module mirror portion (121) is fixed. For example, the transmission module mirror mounting portion (152) can have a groove that can fasten both ends of the first transmission module mirror portion (121). By fixing the first transmission module mirror portion (121), the reliability of the light signal emitted from the transmission module light source portion can be secured.

In addition, the transmission module filter fixing housing mounting part (153) can be mounted so that the transmission module filter fixing housing part (140) is fixed. Here, the transmission module filter fixing housing part (140) can surround the edges of the second transmission module mirror part (122), the third transmission module mirror part (123), and the first transmission module filter part (131a) to the fifth module transmission filter part (132c), and the front and rear sides can be formed in an open form. The transmission module filter fixing housing part (140) can protect the second transmission module mirror part (122), the third transmission module mirror part (123), and the first transmission module filter part (131a) to the fifth transmission module filter part (132c) during the assembly process. At this time, the transmission module filter fixing housing mounting part (153) can be mounted by being fastened to the lower portion of the transmission module filter fixing housing part (140).

Meanwhile, the upper housing part (160) of the transmitter module can be fastened to the lower housing part (150) of the transmitter module. In addition, the upper housing part (160) of the transmitter module can include a filter fixing housing fixing part (161). The filter fixing housing fixing part (161) of the transmitter module can be fastened by being fastened to the upper part of the filter fixing housing part (140). Here, the filter fixing housing fixing part (161) of the transmitter module can be formed to correspond to the filter fixing housing mounting part (153). In addition, the filter fixing housing fixing part (161) of the transmitter module and the filter fixing housing mounting part (153) can be designed to minimize a joining error when combined with the filter fixing housing part (140) so as not to affect the optical path. Therefore, by arranging the transmission module filter fixing housing part (140) based on the transmission module filter fixing housing mounting part (153) and the transmission module filter fixing housing fixing part (161), the optical signal can be aligned and the optical path deviation can be minimized.

FIG. 3 is a drawing illustrating a CWDM receiving module according to an embodiment of the present invention. Referring to FIG. 3, the CWDM receiving module (200) may include a receiving module light source unit (210), a block filter unit (220), a receiving module mirror unit (230), and a receiving module filter unit (240).

Here, the receiving module light source unit (210) may include a plurality of light sources (211, 212, 213, 214, 215, 216) arranged at regular intervals. Since the receiving module light source unit (210) is designed to have a straight line (horizontal) structure, high-speed line design of the PCB substrate (P) is easy. In addition, since it is possible to simultaneously optically align a plurality of light sources constituting the receiving module light source unit (210), it is advantageous for miniaturization. For example, the first receiving module light source (211) may be configured with a VCSEL having a wavelength of 1,005 nm. Here, the first receiving module light source (211) may include a transmitting light source that emits an optical signal for two-way communication. In addition, the second receiving module light source (212) to the sixth receiving module light source (216) are configured with photodiodes and can receive an optical signal having a specific wavelength. For example, the second receiving module light source (212) can receive an optical signal having a wavelength of 960 nm, the third receiving module light source (213) can receive an optical signal having a wavelength of 915 nm, and the fourth receiving module light source (214) can receive an optical signal having a wavelength of 780 nm, the fifth receiving module light source (215) can receive an optical signal having a wavelength of 825 nm, and the sixth receiving module light source (216) can receive an optical signal having a wavelength of 870 nm. That is, an optical signal received based on a photodiode can be converted into an image signal and provided to an image source device.

The block filter unit (220) is provided above the second receiving module light source (212) to the sixth receiving module light source (216), and can transmit specific wavelengths and reflect wavelengths other than the specific wavelength. If the receiving module light source unit (210) receives wavelengths other than the specific wavelength, interference between signals may occur. The block filter unit (220) can minimize interference between signals by blocking specific wavelengths.

The receiving module mirror unit (230) can reflect an optical signal to the receiving module light source unit (210). For example, the first receiving module mirror unit (231) is provided above the block filter unit (220) and can reflect a divided optical signal at a specific angle. At this time, the first receiving module mirror unit (231) can be formed over a large area to reflect the optical signal to the receiving module light source unit (210). In addition, the first receiving module mirror unit (231) is designed to form a 45 degree angle with respect to the ground, thereby guiding an optical signal in a horizontal direction to the receiving module light source unit (210).

Meanwhile, the second receiving module mirror unit (232) can reflect the light of the first receiving module light source (211) reflected from the first receiving module mirror unit (231) toward the first receiving module filter unit (241a). Here, the light signal reflected from the second receiving module mirror unit (232) can be transmitted through the first receiving module filter unit (241a) and incident on the second receiving module filter unit (241b). In addition, the light incident on the second receiving module filter unit (241b) can be reflected toward the fifth receiving module filter unit (242c). At this time, the light signal reflected by the fifth receiving module filter unit (242c) can be transmitted and connected to an optical cable. As a result, data from the image source device of the CWDM receiving module (200) can be transmitted to a display device.

In addition, the third receiving module mirror unit (233) can guide the light signal to a specific angle by reflecting it toward the first receiving module mirror unit (231). For example, the third receiving module mirror unit (233) can reflect the light signal reflected and transmitted from the third receiving module filter unit (242a) toward the first receiving module mirror unit (231).

Meanwhile, the receiving module filter unit (240) can filter by transmitting and reflecting an optical signal. For example, the receiving module filter unit (240) may include a CWDM filter. At this time, the receiving module filter unit (240) may use a wavelength demultiplexer to decompose a complex optical signal. In addition, the first receiving module filter unit (241a) and the second receiving module filter unit (241b) may be provided at a constant interval at a straight-line distance from the second receiving module mirror unit (232). Here, the interval between the second receiving module mirror unit (232), the first receiving module filter unit (241a), and the second receiving module filter unit (241b) may correspond to the interval between the first receiving module light source (211), the second receiving module light source (212), and the third receiving module light source (213). That is, the gap between the second receiving module mirror unit (232), the first receiving module filter unit (241a), and the second receiving module filter unit (241b) can be designed so that the optical path deviation is minimized. In addition, the density can be improved by mounting the chip (C) in the space secured at the bottom of the second receiving module mirror unit (232), the first receiving module filter unit (241a), and the second receiving module filter unit (241b). As a result, the CWDM receiving module (200) can be miniaturized. In addition, since it is possible to design the optical path to have the same length, a high-speed signal can be transmitted and received without distortion.

In addition, the third receiving module filter unit (242a), the fourth receiving module filter unit (242b), and the fifth receiving module filter unit (242c) may be provided at regular intervals at a straight-line distance from the third receiving module mirror unit (233). Here, the third receiving module filter unit (242a), the fourth receiving module filter unit (242b), the fifth receiving module filter unit (242c), and the third receiving module mirror unit (233) may correspond to the intervals between the third receiving module light source (213), the fourth receiving module light source (214), the fifth receiving module light source (215), and the sixth receiving module light source (216). In addition, the second receiving module mirror unit (232), the first receiving module filter unit (241a), and the second receiving module filter unit (241b) may be positioned closer to the first receiving module mirror unit (231) than the third receiving module filter unit (242a), the fourth receiving module filter unit (242b), the fifth receiving module filter unit (242c), and the third receiving module mirror unit (233). In addition, the second receiving module filter unit (241b) and the fifth receiving module filter unit (242c) may be provided at a straight-line distance from the third receiving module light source (213). In this case, the receiving module light source unit (210), the receiving module mirror unit (230), and the receiving module filter unit (240) may be designed so as not to affect the optical path.

Meanwhile, the first receiving module filter unit (241a) can reflect and transmit the optical signal reflected and transmitted by the second receiving module filter unit (242b). For example, the first receiving module filter unit (241a) can reflect light corresponding to a wavelength of 960 nm toward the first receiving module mirror unit (231). In addition, the second receiving module filter unit (241b) can transmit an optical signal corresponding to a wavelength of 915 nm toward the first receiving module mirror unit (231), and reflect optical signals for the remaining wavelengths toward the first receiving module filter unit (241a). In addition, the third receiving module filter unit (242a) can reflect an optical signal corresponding to a wavelength of 825 nm toward the first receiving module mirror unit (231), and transmit optical signals for the remaining wavelengths toward the third receiving module mirror unit (233). The fourth receiving module filter unit (242b) can reflect an optical signal corresponding to a wavelength of 780 nm toward the first receiving module mirror unit (231), and transmit optical signals for the remaining wavelengths toward the third receiving module filter unit (242a). In addition, the fifth receiving module filter unit (242c) can transmit an optical signal for a wavelength of 915 nm toward the second receiving module filter unit (241b), and reflect optical signals for the remaining wavelengths toward the fourth receiving module filter unit (242b). Accordingly, it is possible to split an optical signal received through an optical cable into a receiving module light source unit (210) through the receiving module mirror unit (230) and the receiving module filter unit (240). Therefore, the CWDM receiving module can perform bidirectional communication.

FIG. 4 is a drawing showing the arrangement of elements constituting a CWDM receiving module according to an embodiment of the present invention.

Referring to FIG. 4, it may include a lower housing part (260) of the receiving module, an upper housing part (270) of the receiving module, and a block filter mounting part (280).

First, the receiving module lower housing part (260) may include a receiving module lens array part (261), a receiving module mirror mounting part (262), and a receiving module filter fixing housing mounting part (263). Here, the receiving module lower housing part (260) may be formed by injection molding the receiving module lens array part (261), the receiving module mirror mounting part (262), and the receiving module filter fixing housing mounting part (263) at once using the same material. Accordingly, it is possible to minimize tolerances that occur when the conventional receiving module lens array part (261), the receiving module mirror mounting part (262), and the receiving module filter fixing housing mounting part (263) are designed using different materials and then assembled. The receiving module lens array part (261) may have a lens designed to correspond to the receiving module light source part (210). For example, the receiving module lens array part (261) may correspond to the number and spacing of light sources constituting the receiving module light source part (210). In addition, the receiving module lens array unit (261) can be designed to maintain an optimal focal distance for the light signal emitted from the receiving module light source unit (210). In addition, the receiving module mirror mounting unit (262) can accurately transmit the divided wavelengths to each light source constituting the receiving module light source unit (210) by fixing the first receiving module mirror unit (231).

In addition, the receiving module filter fixing housing mounting part (263) can be mounted so that the receiving module filter fixing housing part (250) is fixed. Here, the receiving module filter fixing housing part (250) surrounds the edges of the second receiving module mirror part (252), the third receiving module mirror part (253), and the first to fifth receiving module filter parts (241a) to (242c), and the front and rear sides can be formed in an open form. Here, the receiving module filter fixing housing mounting part (263) can be mounted by being fastened to the lower part of the receiving module filter fixing housing part (250). That is, the receiving module filter fixing housing mounting part (263) can accurately guide an optical signal by mounting the receiving module filter fixing housing part (250).

Meanwhile, the upper housing part (270) of the receiving module can be fastened to the lower housing part (260) of the receiving module. In addition, the upper housing part (270) of the receiving module can include a receiving module filter fixing housing fixing part (not shown). The receiving module filter fixing housing fixing part can be fastened by being fastened to the upper part of the receiving module filter fixing housing part (250). Here, the receiving module filter fixing housing fixing part can be formed to correspond to the receiving module filter fixing housing mounting part (263). In addition, by arranging the receiving module filter fixing housing part (250) based on the receiving module filter fixing housing mounting part (263) and the receiving module filter fixing housing mounting part, the optical signal can be aligned and the optical path deviation can be minimized.

In addition, a block filter mounting portion (280) may be provided between the receiving module light source portion (210) and the receiving module lower housing portion (260). The block filter mounting portion (280) may be composed of a lower block filter mounting portion and an upper block filter mounting portion. Here, after mounting the block filter on the lower block filter mounting portion, the upper block filter mounting portion may be fixed by joining the upper block filter mounting portion. In addition, in order not to obstruct the path of light divided into the receiving module light source portion (210), the center of the lower block filter mounting portion and the upper block filter mounting portion may be formed in an open shape. At this time, a joining structure may be formed at the lower ends of both sides of the block filter mounting portion (280). The joining structure may be fastened to the PCB substrate (P) to protect the bonding of the receiving module light source portion (210). In addition, the joining structure may prevent an optical signal received from the receiving module light source portion (210) from leaking.

FIG. 5 is a diagram illustrating a method in which a CWDM transmission module according to an embodiment of the present invention operates.

In step (S110), the CWDM transmission module can receive a video signal from a video source device. Here, the video signal can include a control signal and an audio signal, etc.

In step (S120), the CWDM transmission module can emit a plurality of optical signals based on the received image signal from the transmission module light source unit. The transmission module light source unit can include a plurality of light sources arranged at regular intervals. In addition, the CWDM transmission module can include a receiving light source for two-way communication. As an example, the CWDM transmission module can receive light having a wavelength of 1,005 nm based on a photodiode for two-way communication. The photodiode can convert the optical signal into an image signal. Accordingly, the CWDM transmission module can provide a status signal of the display device to the image source device.

In addition, the light source unit of the transmission module can emit light having wavelengths of 960 nm, 915 nm, 780 nm, 825 nm, and 870 nm by a VCSEL (Vertical Cavity Surface Emitting Laser). Here, the light source unit of the transmission module is driven by a VCSEL, which is a semiconductor laser that emits laser in a direction perpendicular to the upper surface, so that data is not distorted and light can be implemented at a high speed.

In step (S130), the CWDM transmission module can multiplex the emitted optical signal using a mirror and a filter. That is, the CWDM transmission module can combine optical signals of different wavelengths based on the mirror and the filter. First, a first transmission module mirror is provided on the upper side of the transmission module light source section, so as to reflect an optical signal emitted in a vertical direction from an upper surface of the transmission module light source section at a specific angle. At this time, the first transmission module mirror can be formed over a large area in order to reflect optical signals emitted from a plurality of transmission light sources. In addition, the first transmission module mirror is designed to form a 45 degree angle with respect to the ground, so as to guide an optical signal in a horizontal direction to the transmission light source.

Here, the CWDM transmission module can combine the optical signals of each transmission light source into a single optical signal based on the third transmission module mirror and the first to fifth transmission module filters. Here, the third transmission module mirror and the first to fifth transmission module filters can receive the optical signal reflected from the first transmission module mirror. In addition, the second transmission module mirror, the first transmission module filter, and the second transmission module filter can be positioned at the same straight-line distance. At this time, the third transmission module mirror, the third transmission module filter, the fourth transmission module filter, and the fifth transmission module filter can be positioned at the same straight-line distance. Here, the second transmission module filter can be provided between the fifth transmission module filter and the third transmission module light source in a straight line.

Meanwhile, the first transmission module filter unit can reflect the optical signal of the second transmission module light source reflected from the first transmission module mirror unit toward the second transmission module filter unit. In addition, the second transmission module filter unit can reflect the optical signal reflected from the first transmission module filter unit toward the fifth transmission module filter unit. In addition, the second transmission module filter unit can transmit the optical signal of the third transmission module light source reflected from the first transmission module mirror unit toward the fifth transmission module filter unit. That is, the second transmission module filter unit can combine the optical signals of the second transmission module light source and the third transmission module light source.

In addition, the third transmission module mirror unit can reflect the optical signal of the sixth transmission module light source reflected from the first transmission module mirror unit toward the third transmission module filter unit. The third transmission module filter unit can transmit the optical signal reflected from the third transmission module mirror unit toward the fourth transmission module filter unit. In addition, the third transmission module filter unit can reflect the optical signal of the fifth transmission module light source reflected from the first transmission module mirror unit toward the fourth transmission module filter unit. And, the fourth transmission module filter unit can transmit the optical signal transmitted from the third transmission module filter unit toward the fifth transmission module filter unit. In addition, the fourth transmission module filter unit can reflect the optical signal of the fourth transmission module light source reflected from the first transmission module mirror unit toward the fifth transmission module filter unit. Here, the fifth transmission module filter unit can reflect the optical signal transmitted from the fourth transmission module filter unit toward the optical cable. In addition, the fifth transmission module filter section can transmit an optical signal transmitted from the second transmission module filter section to the optical cable side. That is, the fifth transmission module filter section can combine optical signals from the second transmission module light source to the sixth transmission module light source into a single optical signal.

In step (S140), the CWDM transmission module can connect the combined optical signal to an optical cable. The optical cable can be provided in a straight line with the fifth transmission module filter section, the second transmission module filter section, and the third transmission module light source section. In addition, an optical cable housing capable of fastening the optical cable can be provided at one end of the CWDM transmission module. Accordingly, the optical cable can be fixed to the CWDM transmission module. In addition, the optical signal can be prevented from leaking to the outside by the optical cable housing. In addition, the optical cable is provided at a position where the tolerance of the optical path is minimized, so that the optical signal can be transmitted at a high speed.

FIG. 6 is a diagram illustrating a method in which a CWDM receiving module according to an embodiment of the present invention operates.

In step (S210), the CWDM receiving module can receive an optical signal from an optical cable. Here, the optical signal can include a status signal of a display device, etc. The optical cable can be provided to the CWDM receiving module in the form of a single optical signal. In addition, an optical cable housing capable of fastening an optical cable can be provided at one end of the CWDM receiving module. The optical cable is fixed to the CWDM transmitting module, and can prevent an optical signal from leaking to the outside in advance.

In step (S220), the CWDM receiving module can demultiplex the received optical signal using a mirror and a filter. First, the CWDM receiving module can include a receiving module filter unit capable of transmitting and reflecting light and a receiving module mirror unit capable of reflecting an optical signal. For example, the CWDM receiving module can have a fifth receiving module filter unit and a second receiving module filter unit at a straight distance from the optical cable. Here, the fifth receiving module filter unit can transmit an optical signal having a wavelength of 915 nm among the optical signals received from the optical cable to the second receiving module filter unit, and reflect optical signals having the remaining wavelengths to the fourth receiving module filter unit. In addition, the fourth receiving module filter unit can reflect an optical signal having a wavelength of 780 nm among the optical signals transmitted from the fifth receiving module filter unit to the first receiving module mirror unit, and transmit optical signals having the remaining wavelengths to the third receiving module mirror unit. As will be described later, the first receiving module mirror section can reflect each divided optical signal to the receiving module light source section. In addition, the third receiving module mirror section can reflect a wavelength corresponding to a wavelength of 870 nm from the optical signal transmitted from the third receiving module filter section toward the first receiving module mirror section.

Meanwhile, the second receiving module filter unit can transmit an optical signal having a wavelength of 915 nm transmitted from the fifth receiving module filter unit to the first receiving module mirror side, and reflect optical signals for the remaining wavelengths to the first receiving module filter unit side. The first receiving module filter unit can reflect an optical signal having a wavelength of 960 nm among the received optical signals to the first receiving module mirror side. Accordingly, the CWDM receiving module can divide an optical signal received in a single form.

At this time, the fifth receiving module filter unit, the fourth receiving module filter unit, the third receiving module filter unit, and the third receiving module mirror unit can be positioned in a straight line. In addition, the second receiving module mirror unit, the first receiving module filter unit, and the second receiving module filter unit can be positioned in a straight line.

In step (S230), the CWDM receiving module can reflect the divided optical signal to the receiving module light source unit based on the first receiving module mirror unit. The first receiving module mirror unit can be formed with a large area to reflect each divided optical signal. Here, the second to sixth receiving module light sources can receive the optical signal reflected from the first receiving module mirror unit. For example, the second receiving module light source can receive a 960 nm optical signal reflected from the first receiving module filter unit, and the third receiving module light source can receive a 915 nm optical signal reflected from the second receiving module filter unit. In addition, the fourth receiving module light source can receive a 780 nm optical signal reflected from the fourth receiving module filter unit, the fifth receiving module light source can receive an 825 nm optical signal reflected from the third receiving module filter unit, and the sixth receiving module light source can receive an 870 nm optical signal reflected from the third receiving module mirror unit. Here, the second to sixth receiving module light sources may be photodiodes that convert an optical signal into an image signal.

Meanwhile, the first receiving module light source can emit an optical signal with a wavelength of 1005 nm using a VCSEL (Vertical Cavity Surface Emitting Laser). Here, the VCSEL emits a laser in a direction perpendicular to the upper surface, and the first receiving module light source can emit an optical signal for two-way communication. The optical signal emitted by the first receiving module light source can be reflected from the first receiving module mirror unit to the second receiving module mirror unit. In addition, the second receiving module mirror unit can reflect the incident optical signal to the first receiving module filter unit. The first receiving module filter unit can transmit the received optical signal to the second receiving module filter unit, and the second receiving module filter unit can reflect the incident optical signal to the fifth receiving module filter unit. The fifth receiving module filter unit can transmit the optical signal reflected from the second receiving module filter unit to the optical cable unit. Accordingly, the CWDM receiving module can communicate two-way with the image source device and the display device.

In step (S240), the CWDM receiving module can convert an optical signal received based on a photodiode into an image signal and provide it to a display device.

The above description of the present invention is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential characteristics of the present invention. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single component may be implemented in a distributed manner, and likewise, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the claims set forth below, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

100 : CWDM Transmitter Module
110 : CWDM receiving module

Claims (17)

In a CWDM transmission/reception module for ultra-high-resolution image transmission of an image source device and a display device,
A CWDM transmission module that receives a video signal from the video source device, emits an optical signal from a plurality of light sources based on the received video signal, combines the optical signals emitted from the plurality of light sources into a single light, connects the optical signals to an optical cable, and transmits the optical signal to the display device using the optical cable; and
A CWDM receiving module that receives the optical signal in the form of the single light from the optical cable, divides the received optical signal and guides it to a plurality of light sources, and converts the optical signal into the image signal and transmits it to the image source device;
The above CWDM transmission module,
A transmission module light source unit that converts the image signal into the light signal by emitting the light signal from a plurality of light sources provided at regular intervals;
A transmission module mirror section that reflects and guides the light signal emitted from the transmission module light source section; and
A transmission module filter section for filtering and combining the optical signal by transmitting and reflecting the optical signal and connecting it to the optical cable;
The above-mentioned transmission module light source section includes the first transmission module light source to the sixth transmission module light source,
The first transmission module light source is a light source for two-way communication, and is a photodiode that receives the optical signal and converts it into the image signal, and the second transmission module light source to the sixth transmission module light source are VCSELs (Vertical Cavity Surface Emitting Lasers) that emit laser in a direction perpendicular to the upper surface, and convert the received image signal into the optical signal,
The above transmitter module mirror section,
A first transmission module mirror section is provided over a large area on the upper side of the transmission module light source section based on the ground, and guides the light signal emitted from the second transmission module light source to the sixth transmission module light source by reflecting it in the horizontal direction, and guides the light signal guided in the horizontal direction toward the first transmission module light source by reflecting it in the vertical direction;
A second transmission module mirror section that guides the optical signal input from the optical cable to the first transmission module mirror section; and
A CWDM transmission/reception module including a third transmission module mirror section that reflects and guides the optical signal of the sixth transmission module light source reflected from the first transmission module mirror section.
delete In paragraph 1,
The above CWDM receiving module
A receiving module filter section that receives the optical signal from the optical cable and divides the received optical signal by reflecting and transmitting the optical signal;
A receiving module mirror section that reflects and divides the above optical signal and guides it to a plurality of above light sources; and
A CWDM transmission/reception module including a receiving module light source unit that receives the divided optical signal, converts it into the image signal, and transmits it to the display device.
delete delete In the first paragraph,
The above-mentioned transmission module filter section includes a first transmission module filter section to a fifth transmission module filter section that reflects and transmits the incident optical signal,
The first transmission module filter section reflects the light signal of the second transmission module light source reflected from the first transmission module mirror section toward the second transmission module filter section,
The second transmission module filter section reflects the optical signal incident on the first transmission module filter section toward the fifth transmission module filter section, and transmits the optical signal of the third transmission module light source reflected from the first transmission module mirror section toward the fifth transmission module filter section.
The third transmission module filter section receives the optical signal of the sixth transmission module light source reflected from the third transmission module mirror section and transmits it to the fourth transmission module filter section, and reflects the optical signal of the fifth transmission module light source reflected from the first transmission module mirror section to the fourth transmission module filter section.
The fourth transmission module filter section transmits the optical signal transmitted from the third transmission module filter section to the fifth transmission module filter section, and reflects the optical signal of the fourth transmission module light source reflected from the first transmission module filter section to the fifth transmission module filter section.
A CWDM transceiver module in which the fifth transmission module filter section transmits the optical signal transmitted from the second transmission module filter section to the optical cable side and reflects the optical signal transmitted from the fourth transmission module filter section to the optical cable side, thereby combining the second transmission module light source to the sixth transmission module light source and connecting them with the optical cable.
In Article 6,
The second transmission module mirror section, the first transmission module filter section and the second transmission module filter section are provided in a horizontal structure,
The above fifth transmission module filter section, the fourth transmission module filter section, the third transmission module filter section and the third transmission module mirror section are provided in a horizontal structure.
A CWDM transmission/reception module wherein the second transmission module filter section and the fifth transmission module filter section are provided in a straight-line structure with the third transmission module light source, and the second transmission module filter section is located between the fifth transmission module filter section and the third transmission module light source.
In Article 6,
A transmission module filter fixing housing portion formed with a structure in which the front and back are open so as not to obstruct the optical path, and which surrounds the edges of the second transmission module mirror portion, the third transmission module mirror portion, and the first transmission module filter portion to the fifth transmission module filter portion;
A lower housing section of the transmission module, which is designed to correspond to the light source section of the above-mentioned transmission module, and is mounted on both ends of the first transmission module mirror section and is mounted so that the lower end of the transmission module filter fixing housing section is fixed; and
A CWDM transceiver module further comprising a transmitter module upper housing part that is connected to the lower housing part of the transmitter module and fixes the upper part of the transmitter module filter fixing housing part.
In the third paragraph,
The above-mentioned receiving module light source section includes the first receiving module light source to the sixth receiving module light source,
The above first receiving module light source is a VCSEL (Vertical Cavity Surface Emitting Laser) that emits a laser in a direction perpendicular to the upper surface for two-way communication, and converts the received image signal into the optical signal,
A CWDM transceiver module wherein the second receiving module light source to the sixth receiving module light source are photodiodes that receive the optical signal and convert it into the image signal.
In Article 9,
The above receiver module mirror section
It is provided on a large area on the upper side of the light source part of the receiving module based on the ground,
The first receiving module mirror section that reflects the optical signal guided horizontally from the optical cable in the vertical direction and guides it toward the second receiving module light source to the sixth receiving module light source, and guides the optical signal emitted from the first receiving module light source by reflecting it horizontally;
A second receiving module mirror section that reflects and guides the light signal of the first receiving module light source reflected from the first receiving module mirror section; and
A CWDM transmission/reception module including a third reception module mirror section that guides the optical signal input from the optical cable toward the first reception module mirror section.
In Article 10,
The above-mentioned receiving module filter section includes the first to fifth receiving module filter sections that reflect and transmit the incident optical signal,
The above first receiving module filter section reflects the optical signal reflected and transmitted from the second receiving module filter section toward the first receiving module mirror section,
The second receiving module filter section reflects the first wavelength optical signal from the optical signal transmitted from the fifth receiving module filter section toward the first receiving module mirror section, and reflects optical signals other than the first wavelength optical signal toward the first receiving module filter section.
The second receiving module filter section reflects the second wavelength optical signal from the optical signal transmitted from the fourth receiving module filter section toward the first receiving module mirror section, and the optical signal other than the second wavelength optical signal is transmitted to the third receiving module mirror section.
The fourth receiving module filter section reflects the third wavelength optical signal transmitted from the fifth receiving module filter section toward the first receiving module mirror section, and the optical signals other than the third wavelength optical signal are transmitted toward the third receiving module filter section.
A CWDM transceiver module in which the fifth reception module filter section reflects the fourth wavelength optical signal of the optical signal input from the optical cable toward the fourth reception module filter section and transmits optical signals other than the fourth wavelength optical signal to the second reception module filter section to split the optical signal.
In Article 11,
The second receiving module mirror section, the first receiving module filter section and the second receiving module filter section are provided in a horizontal structure,
The above fifth receiving module filter section, the fourth receiving module filter section, the third receiving module filter section and the third receiving module mirror section are provided in a horizontal structure,
A CWDM transmission/reception module wherein the second reception module filter section and the fifth reception module filter section are provided in a straight-line structure with the third reception module light source, and the second reception module filter section is located between the fifth reception module filter section and the third reception module light source.
In Article 12,
A receiving module filter fixing housing part formed with a structure in which the front and back are open so as not to obstruct the optical path, and which surrounds the edges of the second receiving module mirror part, the third receiving module mirror part, and the first receiving module filter part to the fifth receiving module filter part;
A lens array is designed to correspond to the light source section of the above-mentioned receiving module, and a receiving module lower housing section is provided to support both ends of the first receiving module mirror section and to secure the lower end of the receiving module filter fixing housing section; and
A CWDM transmit/receive module further comprising a receiving module upper housing part that is connected to the receiving module lower housing part and fixes the upper part of the receiving module filter fixing housing part.
delete In a method of operating a CWDM transmission/reception module for ultra-high-resolution image transmission of an image source device and a display device, the CWDM transmission/reception module receives an image signal from the image source device and transmits an optical signal to the display device using an optical cable, and
It includes a CWDM receiving module that receives the optical signal in the form of a single light from the optical cable, converts the optical signal into the image signal, and transmits it to the display device.
a) a step in which the CWDM transmission module receives the image signal from the image source device, converts the received image signal into the optical signal based on a plurality of light sources, and emits the optical signal of a specific wavelength;
b) a step in which the CWDM transmission module transmits and reflects the optical signals, which are emitted from each of the plurality of light sources and divided into a form, based on a mirror and a filter to combine them into a single light;
c) a step of transmitting the optical signal combined with the CWDM transmission module by connecting it to the optical cable;
d) a step in which the CWDM receiving module receives the optical signal in the form of a single optical signal from the optical cable;
e) a step of dividing the optical signal received by the CWDM receiving module by transmitting and reflecting it based on the mirror and the filter; and
f) a step of the CWDM receiving module receiving the divided optical signal from a plurality of the light sources, converting the optical signal into the image signal, and providing it to the display device;
The above CWDM transmission module,
A transmission module light source unit that converts the image signal into the light signal by emitting the light signal from a plurality of light sources provided at regular intervals;
A transmission module mirror section that reflects and guides the light signal emitted from the transmission module light source section; and
A transmission module filter section for filtering and combining the optical signal by transmitting and reflecting the optical signal and connecting it to the optical cable;
The above-mentioned transmission module light source section includes the first transmission module light source to the sixth transmission module light source,
The first transmission module light source is a light source for two-way communication, and is a photodiode that receives the optical signal and converts it into the image signal, and the second transmission module light source to the sixth transmission module light source are VCSELs (Vertical Cavity Surface Emitting Lasers) that emit laser in a direction perpendicular to the upper surface, and convert the received image signal into the optical signal,
The above transmitter module mirror section,
A first transmission module mirror section is provided over a large area on the upper side of the transmission module light source section based on the ground, and guides the light signal emitted from the second transmission module light source to the sixth transmission module light source by reflecting it in the horizontal direction, and guides the light signal guided in the horizontal direction toward the first transmission module light source by reflecting it in the vertical direction;
A second transmission module mirror section that guides the optical signal input from the optical cable to the first transmission module mirror section; and
A method for operating a CWDM transmission/reception module, comprising: a third transmission module mirror section that reflects and guides the optical signal of the sixth transmission module light source reflected from the first transmission module mirror section.
delete In Article 15,
The light source of the CWDM receiving module includes at least one VCSEL (Vertical Cavity Surface Emitting Laser) that emits a laser in a direction perpendicular to the upper surface for converting the received image signal into the optical signal for two-way communication,
A method for operating a CWDM transmission/reception module including a plurality of photodiodes that receive the optical signal and convert it into the image signal.

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