CN103913935B - Light source system for stereoscopic projection device - Google Patents

Abstract

The invention provides a light source system for a stereoscopic projection device, which comprises a light-emitting element and a color wheel module, wherein the light-emitting element is suitable for generating a plurality of first waveband light rays, the color wheel module is provided with a plurality of waveband penetration conversion blocks and a plurality of waveband reflection conversion blocks, when the first waveband light rays are projected to the waveband penetration conversion blocks, the waveband penetration conversion blocks can penetrate through the waveband and excite a plurality of first selected waveband light rays, and when the first waveband light rays are projected to the waveband reflection conversion blocks, the waveband reflection conversion blocks can excite and reflect a plurality of second selected waveband light rays. The light source system for the projection device only comprises the single color wheel, the plurality of wave band penetrating conversion blocks and the plurality of wave band reflection blocks, and can generate two different light rays with preset wavelengths, so that the volume of the light source system is effectively reduced.

Description

Light source system for stereoscopic projection device

technical field

The present invention relates to a light source system for a projection device, in particular to a light source system for a stereoscopic projection device, and in particular to a light source system comprising a color wheel module with multiple band penetration conversion blocks and multiple band reflections Convert blocks.

Background technique

In order to play vivid stereoscopic images so that viewers have a sense of presence when watching, stereoscopic projection devices have been widely used in various performance occasions.

Existing light source systems for stereoscopic projection devices usually have a color wheel and a color filter. After multiple primary color lights are converted into multiple light rays of two different wavelengths, the imaging system of the projection device is used to convert the multiple light rays of two different wavelengths into images from the perspective of the left eye and images from the perspective of the right eye. Viewers only need to match The passive glasses can achieve the effect that the left eye receives the image from the left eye perspective, and the right eye receives the image from the right eye perspective, and the viewer's brain will automatically combine the left eye perspective image and the right eye perspective image into a stereoscopic image.

However, since the above-mentioned existing light source system has a color wheel and a color filter, the volume of the stereoscopic projection device using the existing light source system will not be miniaturized, and moreover, a plurality of three primary color light rays will be transmitted with different incidences. If the angle is projected onto the color filter, if it is not projected on the color filter at an angle almost perpendicular to the color filter, it will easily convert light of an unpredetermined wavelength, that is, it is easy to generate image crosstalk (crosstalk) , that is, the user's right eye is likely to see the right-eye perspective image and part of the left-eye perspective image at the same time, or the left eye sees the left-eye perspective image and part of the right-eye perspective image.

In view of this, developing a light source system for a stereoscopic projection device to improve the above defects and avoid image crosstalk has become an urgent goal in the industry.

Contents of the invention

An object of the present invention is to provide a miniaturized light source system for use in a stereoscopic projection device. Yet another object of the present invention is to provide a light source system for a stereoscopic projection device that can accurately provide multiple lights with two different preset wavelengths.

To achieve the above purpose, the light source system for a stereoscopic projection device disclosed in the first embodiment of the present invention includes a light emitting element and a color wheel module, the light emitting element is suitable for providing a plurality of light rays of the first wavelength band, and the color wheel module has A rotatable turntable, a plurality of waveband penetration conversion blocks and a plurality of waveband reflection conversion blocks, these wave band penetration conversion blocks and these wave band reflection conversion blocks are formed on the wheel disk, when the first When light of a wavelength band is projected onto the penetration conversion block of these wavelength bands, it can pass through the transmission conversion block of these wavelength bands and excite a plurality of light rays of the first selected wavelength band different from the light rays of the first wavelength band, and when the When the first waveband light is projected onto the waveband reflection conversion blocks, the waveband reflection conversion blocks can excite and reflect a plurality of second light rays different from the first waveband light rays and the first selected waveband light rays. Selected bands of light.

Also, to achieve the above purpose, the light source system for a stereoscopic projection device disclosed in the second embodiment of the present invention includes a light-emitting element and a color wheel module, and the light-emitting element is adapted to provide a plurality of first-band blue light and A plurality of second-waveband blue rays; the color wheel module has a rotatable turntable, a first-waveband penetration block, a second-waveband penetration block, a plurality of wavelength-band penetration conversion blocks, and multiple The band reflection conversion block, the first band penetration block, the second band penetration conversion block, the band penetration conversion blocks and the band reflection conversion blocks are formed on the wheel; A band of blue light can penetrate the first band penetrating block, and the second band blue light can pass through the second band penetrating block, when the first band blue light is projected onto the When the wavelength band penetrates the conversion block, the wavelength bands can penetrate the conversion block and excite a plurality of first selected wave band rays, and when the second wave band blue light is projected to the wave band reflection conversion block When the wavelength band reflection conversion block can excite and reflect a plurality of second selected wavelength band light.

The light source system used in the projection device of the present invention only has a single color wheel including a plurality of band penetration conversion blocks and a plurality of band reflection blocks, and can generate two different predetermined wavelengths of light, so as to effectively reduce the light source system. volume.

In order to make the above-mentioned purpose, technical features and advantages better known and applied by those skilled in the art, several preferred implementations of the present invention and accompanying drawings are described below in detail.

Description of drawings

FIG. 1A is a schematic diagram of a light source system according to a first embodiment of the present invention;

FIG. 1B is a schematic diagram of light paths of multiple first-wavelength light rays projected to multiple wavelength-band penetration conversion blocks in the light source system according to the first embodiment of the present invention;

FIG. 1C is a schematic diagram of light paths of multiple first-wavelength light rays projected to multiple wavelength-band reflection conversion blocks in the light source system according to the first embodiment of the present invention;

2 is a schematic diagram of the color wheel module of the light source system according to the first embodiment of the present invention;

3A is a schematic diagram of a light source system according to a second embodiment of the present invention;

3B is a schematic diagram of the light paths of multiple first-wavelength blue light rays projected to the first-wavelength transmission block and the multiple-wavelength transmission conversion blocks of the light source system according to the second embodiment of the present invention;

FIG. 3C is a schematic diagram of the light paths of multiple second-band blue light rays projected to the second-band penetration block and multiple-band reflection conversion blocks of the light source system according to the second embodiment of the present invention; and

4 is a schematic diagram of a color wheel module of a light source system according to a second embodiment of the present invention.

Wherein, the reference signs are explained as follows:

1 light source system

11 light emitting elements

111 first wave band light

112 first selected band light

112a First selected band red light

112b First selected band blue light

112c First selected band green light

113 second selected band light

113a second selected band red light

113b second selected band blue light

113c second selected band green light

12 color wheel modules

121 turntable

122 band penetration conversion block

122a first red fluorescent area

122b first blue fluorescent region

122c first green fluorescent area

123-band reflection conversion block

123a second red fluorescent region

123b second blue fluorescent region

123c second green fluorescent area

13 filter

14 light pipes

15 light guiding elements

151 first light guiding element

152 second light guiding element

16 lenses

2 light source system

21 light emitting elements

21a First-band blue light

21b Second-band blue light

211 First selected band light

211a First selected band red light

211b First selected band green light

212 second selected band light

212a second selected band red light

212b second selected band green light

22 color wheel module

221 turntable

222 The first band penetrates the block

223 band penetration conversion block

223a first red fluorescent area

223b first green fluorescent area

224 The second band penetrates the block

225-band reflection conversion block

225a second red fluorescent area

225b second green fluorescent area

23 filters

24 light pipes

25 light guiding elements

251 first light guiding element

252 second light guiding element

26 lenses

detailed description

Please refer to FIG. 1A , which is a schematic diagram of a light source system 1 used in a stereoscopic projection device according to a first embodiment of the present invention. The light source system 1 includes a light emitting element 11 and a color wheel module 12 . As shown in FIG. 1A , the light emitting element 11 is adapted to provide a plurality of light rays 111 of the first wavelength band. Please further refer to FIG. 2 which is a schematic diagram of the color wheel module 12 of this embodiment. The color wheel module 12 has a rotatable turntable 121, a plurality of band penetration conversion blocks 122 and a plurality of band reflection conversion blocks 123. These bands pass through The transmission conversion block 122 and the reflection blocks 123 of these wavelength bands are formed on the wheel 121 . During the actual operation of the light source system 1 of this embodiment, the rotatable turntable 121 is constantly rotating, so that the light rays 111 of the first wavelength band projected by the light-emitting element 11 will be projected in turn to the transmission conversion block 122 of each wavelength band and the reflection of each wavelength band. Convert block 123 on.

Based on the above, please refer to FIG. 1A, when the light rays 111 of the first wavelength bands are projected onto the transmissive conversion blocks 122, they can penetrate the transmissive conversion blocks 122 of the wavelength bands and excite different A plurality of first selected wavelength band rays 112 of a wavelength band light 111, and when the first wavelength band rays 111 are projected onto the wavelength band reflection conversion blocks 123, the wavelength band reflection conversion blocks 123 can excite and reflect different A plurality of second selected wavelength band rays 113 of the first selected wavelength band rays 111 and the first selected wavelength band rays 112 .

The stereoscopic projection device may include an imaging module (not shown in the figure) to convert the first selected waveband light rays 112 and the second selected waveband light rays 113 into a first projection frame and a second projection frame, respectively. When the light source system of this embodiment is actually applied, the imaging module can receive the light rays 112 of the first selected wavelength bands and convert the first projection image into a right-eye perspective image, and the imaging module can receive the second selected Waveband light 113 is converted into the second projection image as a left-eye perspective image. The viewer only needs to wear a pair of passive glasses to achieve the effect that the left eye receives the left-eye perspective image and the right eye receives the right-eye perspective image. The brain will automatically combine the left-eye perspective image and the right-eye perspective image into a stereoscopic image.

Further, please refer to FIG. 1B and FIG. 2 at the same time. FIG. 1B is a schematic diagram of the light path of the first wavelength band light 111 projected to the wavelength band penetration conversion block 122 in this embodiment, and the wavelength band penetration conversion area The block 122 has a first red fluorescent area 122a, a first blue fluorescent area 122b and a first green fluorescent area 122c, when the light 111 of the first wavelength band is projected onto the first red fluorescent area 122a, it can pass through the first red fluorescent area 122a. A red fluorescent region 122a excites a plurality of first selected wavelength band red light rays 112a of the first selected wavelength band light rays 112. When the first wavelength band light rays 111 are projected onto the first blue fluorescent region 122b, they can pass through A plurality of first selected wavelength band blue light rays 112b that pass through the first blue fluorescent region 122b and excite the first selected wavelength band light rays 112, similarly, when the first wavelength band light rays 111 are projected onto the first green fluorescent light region 122c, it can penetrate the first green fluorescent region 122c and excite a plurality of first selected wavelength band green light rays 112c of the first selected wavelength band light rays 112, and the imaging module can take the first selected wavelength band light rays 112 The red light rays 112a of the wavelength band, the blue light rays 112b of the first selected wavelength band and the green light rays 112c of the first selected wavelength band are converted into the first projection image.

Please refer to FIG. 1C and FIG. 2 at the same time. FIG. 1C is a schematic diagram of the light path of the first waveband light 111 projected to the waveband reflection conversion blocks 123 in this embodiment, and the waveband reflection conversion blocks 123 have a second red color. Fluorescent region 123a, a second blue fluorescent region 123b and a second green fluorescent region 123c, when the light 111 of the first wavelength band is projected onto the second red fluorescent region 123a, the second red fluorescent region 123a can excite and reflect The plurality of second selected wavelength band red light rays 113a of the second selected waveband light rays 113, when the first waveband light rays 111 are projected onto the second blue fluorescent region 123b, the second blue fluorescent region 123b can excite and A plurality of second selected wavelength band blue light rays 113b reflecting the second selected wavelength band light rays 113, when the first wavelength band light rays 111 are projected onto the second green fluorescent region 123c, the second green fluorescent region 123c can excite and reflect a plurality of second selected wavelength band green light rays 113c of the second selected waveband light rays 113, and the imaging module can reflect the second selected waveband red light rays 113a, the second selected waveband blue light rays 113c The colored light 113b and the second selected green light 113c are converted into the second projection image.

The light source system 1 of this embodiment includes a filter 13 , a light guide 14 , a plurality of light guiding elements 15 and a plurality of lenses 16 . Wherein, the light guiding elements 15 include a first light guiding element 151 and a plurality of second light guiding elements 152 for guiding the first light rays 111 of the wavelength band, the first selected waveband light rays 112 and the At least one of the second selected waveband light rays 113, the lenses 16 are suitable for focusing at least one of the first selected waveband light rays 111, the first selected waveband light rays 112 and the second selected waveband light rays 113 one of them.

Now further describe the behavior of the first waveband light rays 111 and the first selected waveband light rays 112 in detail. Please continue to refer to FIG. 1A and FIG. 1B. These first waveband light rays 111 will first pass through at least One of them and the first light guide element 151 are projected to the color wheel module 12, and when projected and penetrated through the conversion block 122 of the wavelength bands, the light rays 112 of the first selected wavelength bands are excited ( In this embodiment, the first selected wavelength band red light 112a, the first selected wavelength blue light 112b and the first selected wavelength green light 112c) are then passed through the focusing of other lenses 16 and the second light guides The guiding element 152 reflects the first selected wavelength band light rays 112 to the filter 13, passes through at least one of the lenses 16, and projects to the light guide 14, and finally the light guide 14 takes the first selected wavelength band light rays 112 supplied to the imaging module.

Please continue to refer to FIG. 1A and FIG. 1C, the first light guide element 151 is disposed between the light emitting element 11 and the color wheel module 12, and similarly, the light rays 111 of the first wavelength band will first pass through at least one of the lenses 16. One and the first light guide element 151, and project to the color wheel module 12, and when projected to the reflection conversion blocks 123 of the wavelength bands, the reflection conversion blocks 123 of the wavelength bands will excite the second selected The wavelength band light 113 (including the second selected wavelength band red light 113a, the second selected wavelength band blue light 113b and the second selected wavelength band green light 113c in this embodiment) is reflected to the first light guiding element 151, and then After the first light guide element 151 reflects the light rays 113 of the second selected wavelength bands to the filter 13, then passes through at least one of the lenses 16, and then projected to the light guide 14, and finally the light guide 14 guides the second selected wavelengths to the optical filter 13. The selected wavelength band light 113 is provided to the imaging module.

In order to control the incident angles of the first selected waveband light rays 112 and the second selected waveband light rays 113 on the light guide 14, in this embodiment, the filter 13 will filter part of the first selected waveband light rays The light rays 112 and the second selected waveband light rays 113, in other words, the optical filter 13 only allows the first selected waveband light rays 112 and the second selected waveband light rays 113 perpendicular to the optical filter 13 to pass through, also That is, when the light rays 112 of the first selected wavelength bands are incident on the filter 13, there will be an angle between them and the filter 13. If the angle is 90 degrees, they can pass through the filter 13. Similarly, these When the second selected waveband light 113 is incident on the filter 13, there will be an angle between the filter 13, if the angle is 90 degrees, it can pass through the filter 13, and then, perpendicular to the direction of the filter 13 The first selected waveband light rays 112 and the second selected waveband light rays 113 are focused by the lens 16 and then projected to the light guide 14 . In this way, the first selected waveband light rays 112 and the second selected waveband light rays 113 can avoid the aforementioned image crosstalk phenomenon (crosstalk) caused by changing their wavelengths due to excessively large incident angles. In this embodiment, in order to effectively filter the first selected wavelength band light rays 112 and the second selected wavelength band light rays 113 , the filter 13 is a narrowband filter.

It should be noted that, when the first selected waveband light rays 112 and the second selected waveband light rays 113 are incident on the optical filter 13, the angle between them and the optical filter 13 is not limited to 90 degrees. In other embodiments of the invention, the angle may be between 80 degrees and 110 degrees.

In addition, the arrows in Fig. 1A, Fig. 1B and Fig. 1C respectively refer to the first wave band light 111, the first selected wave band light 112, the second selected wave band light 113, the first selected wave band red light 112a, the first selected light wave The blue ray 112b of the wavelength band and the green ray 112c of the first selected wavelength band, the red ray 113a of the second selected wavelength band, the blue ray 113b of the second selected wavelength band and the green ray 113c of the second selected wavelength band only illustrate the paths of these rays route, not to represent the number of such rays.

Please refer to FIG. 3A, which is a schematic diagram of a light source system 2 used in a stereoscopic projection device according to a second embodiment of the present invention. The difference between the light source system 2 of this embodiment and the light source system 1 of the first embodiment of the present invention is that the light source system 2 includes a The light emitting element 21 is adapted to provide a plurality of first-wavelength blue light rays 21a and a plurality of second-wavelength blue light rays 21b, and the first-wavelength blue light rays 21a and the second-wavelength blue light rays 21b emit light alternately. The detailed structure of the light source system 2 of this embodiment will be described in detail below.

The light source system 2 includes a light emitting element 21 and a color wheel module 22. As shown in FIG. 3A , the light emitting element 21 is adapted to provide a plurality of first-wavelength blue light rays 21a and a plurality of second-wavelength blue light rays 21b. Please further refer to FIG. 4 which is a schematic diagram of the color wheel module 22 of this embodiment. The color wheel module 22 has a rotatable turntable 221, a first band penetration block 222, multiple band penetration conversion blocks 223, a first Two-band penetration block 224 and a plurality of band reflection conversion blocks 225, the first wave band penetration block 222, the wave band transmission conversion blocks 223, the second wave band penetration block 224 and the wave band reflection conversion Blocks 225 are formed on the wheel 221 . During the actual operation of the light source system 2 of this embodiment, the blue light rays 21a of the first wavelength band and the blue light rays 21b of the second waveband emit light alternately, and the rotatable turntable 221 rotates continuously. When the light emitting element 21 projects The blue light rays 21a of the first band will only be projected on the first band penetrating block 222 and each band penetrating conversion block 223 in turn, while the second band blue light projected by the light emitting element 21 The light 21b will only be projected onto the second wavelength band transmission block 224 and each wavelength band reflection conversion block 225 in turn.

Based on the above, please refer to FIG. 3A, the blue light rays 21a of the first wavelength band can pass through the first waveband penetrating area 222, and the blue light rays 21b of the second waveband can pass through the penetrating area of the second waveband. Block 224. When the blue light rays 21a of the first wavelength band are projected onto the transmission conversion block 223 of the wavelength band, they can penetrate the transmission conversion block 223 of the wavelength band and excite a plurality of light rays 211 of the first selected wavelength band, and when When the blue light rays 21 b of the second wavelength band are projected onto the reflective conversion blocks 225 of the wavelength bands, the reflective conversion blocks 225 can excite and reflect a plurality of light rays 212 of the second selected wavelength band.

The stereoscopic projection device includes an imaging module that converts the first-waveband blue light rays 21a and the first selected waveband light rays 211 into a first projection image, and converts the second-waveband blue light rays 21b and the first selected waveband light rays 211 The light 212 of the two selected wavelength bands is converted into a second projection image. When the light source system of this embodiment is actually applied, the imaging module can receive the blue light rays 21a of the first waveband and the light rays 211 of the first selected waveband and convert the first projected image into a right-eye perspective image, and the The imaging module can receive the blue light rays 21b of the second waveband and the light rays 212 of the second selected waveband and convert the second projected picture into a left-eye perspective image. The left eye receives the image from the perspective of the left eye, and the right eye receives the image from the perspective of the right eye. The brain of the viewer will automatically combine the image from the perspective of the left eye and the image from the perspective of the right eye into a stereoscopic image.

Furthermore, please refer to FIG. 3B and FIG. 4 at the same time. FIG. 3B shows the projection of the blue light rays 21a of the first waveband to the first waveband penetration block 222 and the waveband penetration conversion block 223 of this embodiment. Schematic diagram of the light path. When the first-wavelength blue light rays 21a can penetrate the first-waveband penetrating block 222, at this moment, the first-wavelength blue light rays 21a simply penetrate the first-waveband penetrating block 222 and will not Change any wavelength, frequency and color. The wavelength band penetration conversion block 223 has a first red fluorescent area 223a and a first green fluorescent area 223b. When the first blue light 21a of the first wavelength band penetrates the first red fluorescent area 223a, the A plurality of first selected red light rays 211a of the first selected waveband light 211, similarly, when the first blue light rays 21a of the first waveband pass through the first green fluorescent region 223b, the first selected waveband light rays 211a are excited to emit the first selected waveband light rays 211a. The selected wavelength band light 211 is a plurality of first selected wavelength band green light 211b. The imaging module can convert the first blue light rays 21a of the wavelength band, the red light rays 211a of the first selected wavelength band and the green light rays 211b of the first selected wavelength band into the first projection image. And in this embodiment, the wavelength of the blue rays 21 a of the first wavelength band is 460 nanometers (nm). However, in other preferred embodiments of the present invention, the wavelengths of the first-band blue light rays 21a may all be between 460-470 nanometers (nm).

Please refer to FIG. 3C and FIG. 4 at the same time. FIG. 3C is a schematic diagram of the optical path of the second-band blue light 21b projected to the second-band penetration block 224 and the second-wavelength conversion conversion block 225 in this embodiment. . When the second-band blue light rays 21b can penetrate the second-waveband penetration block 224, at this moment, the second-wavelength blue light rays 21b simply penetrate the second-waveband penetration block 224 and will not Change any wavelength, frequency and color. And the second wavelength band penetration conversion block 225 has a second red fluorescent area 225a and a second green fluorescent area 225b, when the second wavelength blue light 21b penetrates the second red fluorescent area 225a, it is A plurality of second selected wavelength band red light rays 212a of the second selected wavelength band light rays 212 are excited. Similarly, when the first wavelength band blue light rays 21a penetrate the second green fluorescent region 225b, the plurality of second selected wavelength band light rays 212 are excited. A plurality of second selected wavelength band green light rays 212 b of the second selected wavelength band light rays 212 . The imaging module can convert the second blue light rays 21b of the wavelength band, the red light rays 212a of the second selected wavelength band and the green light rays 212b of the second selected wavelength band into the second projection image. In this embodiment, the wavelength of the second-band blue light 21b is 448 nanometers (nm). However, in other preferred embodiments of the present invention, the wavelengths of the second-band blue light rays 21b may be between 440-450 nanometers (nm).

The light source system 2 of this embodiment includes a filter 23 , a light guide 24 , a plurality of light guiding elements 25 and a plurality of lenses 26 . Wherein, the light guiding elements 25 include a first light guiding element 251 and a plurality of second light guiding elements 252 for guiding the first blue light rays 21a of the wavelength band, the first selected waveband light rays 211 , at least one of the second wavelength band blue light rays 21b and the second selected wavelength band light rays 212, the lenses 26 are suitable for focusing the first wavelength band blue light rays 21a, the first selected wavelength band light rays At least one of the light 211 , the blue light 21 b of the second wavelength band and the light 212 of the second selected wavelength band.

Now further describe the behavior of the first waveband blue light rays 21a and the first selected waveband light rays 211. Please continue to refer to FIG. 3A and FIG. 3B. These first waveband blue light rays 21a will first pass through the At least one of the lenses 26 and the first light guide element 251 are projected to the color wheel module 22, and then penetrate the first waveband penetration block 222, focus through other lenses 26, and pass through the second light guides After the guiding element 252 reflects the first-band blue light rays 21a to the filter 23, passes through at least one of the lenses 26, and projects to the light guide 24, and finally the light guide 24 takes the first-waveband blue rays 21a supplied to the imaging module. And when these first waveband blue light rays 21a project and penetrate these wavebands after penetrating the conversion block 223, these first selected waveband light rays 211 (including the first selected waveband light rays 211 in this embodiment) are excited. The red light 211a and the second selected wavelength band green light 211b), then pass through other lenses 26 to focus and the second light guiding elements 252 to reflect the first selected waveband light 211 to the filter 23, then pass through At least one of the lenses 26 is projected toward the light guide 24, and finally the light guide 24 provides the first selected wavelength band light 211 to the imaging module.

Please continue to refer to FIG. 3A and FIG. 3C, the first light guide element 251 is arranged between the light emitting element 21 and the color wheel module 22, similarly, the blue light rays 21b of the second wavelength band will first pass through the lenses 26 At least one of them and the first light guide element 251 are projected to the color wheel module 22, and then penetrate the second waveband penetration block 222, then focus through other lenses 26, and pass through the second light guide elements 252 After reflecting the blue light rays 21b of the second wavelength band to the filter 23, they pass through at least one of the lenses 26 and project to the light guide 24, and finally the light guide 24 provides the blue light rays 21b of the second wave band to the light guide 24. imaging module. When the light-emitting element 21 projects the blue light rays 21b of the second wavelength band, the blue light rays 21b of the second waveband will first pass through at least one of the lenses 26 and the first light guiding element 251, and then go to the color direction. The wheel module 22 projects, and when projected to the reflection conversion blocks 225 of the wavelength bands, the reflection conversion blocks 225 of the wavelength bands will excite the light rays 212 of the second selected wavelength bands and reflect them to the first light guide element 251, Then the first light guide element 251 reflects the second selected wavelength band light rays 212 to the filter 23, passes through at least one of the lenses 26, and projects to the light guide 24, and finally the light guide 24 takes the second The selected wavelength band of light 212 is provided to the imaging module.

In order to control the angles at which the first blue light rays 21a of the wavelength band, the first selected waveband light rays 211, the second waveband blue light rays 21b and the second selected waveband light rays 212 are incident on the light guide 24, in In this embodiment, the optical filter 23 will filter a part of the blue light rays 21a of the first wavelength band, the light rays 211 of the first selected waveband, the blue light rays 21b of the second waveband and the second selected waveband light The light 212, in other words, the optical filter 23 only allows the blue light rays 21a of the first wavelength band, the first selected wavelength band light rays 211, the blue light rays 21b of the second wavelength band and the The second selected waveband light 212 passes through, that is, when the first waveband blue light 21a is incident on the filter 23, there will be an angle between the light filter 23, and if the angle is 90 degrees, it can pass through. Through the optical filter 23, when the light 211 of the first selected wavelength band is incident on the optical filter 23, there will be an angle between the optical filter 23, if the angle is 90 degrees, it can pass through the optical filter 23 , when the second-band blue light rays 21b are incident on the filter 23, there will be an angle between them and the filter 23. If the angle is 90 degrees, they can pass through the filter 23. Similarly, the When the light 212 of the second selected wavelength band is incident on the optical filter 23, there will be an angle between the optical filter 23. If the angle is 90 degrees, it can penetrate the optical filter 23, and then, perpendicular to the optical filter 23, the first wavelength band blue light rays 21a, the first selected wavelength band light rays 211, the second wavelength band blue light rays 21b and the second selected wavelength band light rays 212 are suitable for projection after being focused by the lens 26 to the light pipe 24 . In this way, the blue light rays 21a of the first waveband, the light rays 211 of the first selected waveband, the blue light rays 21b of the second waveband and the light rays 212 of the second selected waveband can avoid changes due to too large incident angles. The above-mentioned image crosstalk phenomenon (crosstalk) occurs due to its wavelength. In this embodiment, in order to effectively screen the first-waveband blue light rays 21a, the first selected waveband light rays 211, the second-wavelength blue light rays 21b and the second selected waveband light rays 212, The filter 23 is a narrowband filter.

It should be noted that the blue light rays 21a of the first waveband, the light rays 211 of the first selected waveband, the blue light rays 21b of the second waveband and the light rays 212 of the second selected waveband are incident on the filter 23 When , the angle with the filter 23 is not limited to 90 degrees, and in other embodiments of the present invention, the angle can be between 80 degrees and 110 degrees.

It should be noted that the arrows in FIG. 3A , FIG. 3B and FIG. 3C respectively refer to the blue light rays 21 a of the first wavelength band, the first selected wavelength band light rays 211 , the second blue light rays 21 b of the wavelength band, the second selected waveband light rays 212 , The first selected wavelength band red light 211a, the first selected wavelength band green light 211b, the second selected wavelength band red light 212a and the second selected wavelength band green light 212b only illustrate the travel routes of these light rays, and are not intended to represent the and so on the number of rays.

To sum up, compared with the light source system of the existing stereoscopic projection device, which needs to pass through a color wheel (colorwheel) and a color filter (colorfiler) to be able to generate two different wavelengths of light, the present invention is used in the projection device The light source system only has a single color wheel, including multiple band penetration conversion blocks and multiple band reflection blocks, which can generate two different predetermined wavelengths of light, so as to effectively reduce the volume of the light source system, and filter light The setting of the chip can effectively screen the incident angle of the light, solve the problem of crosstalk in the old image, and improve the imaging quality of the stereoscopic projection device.

The above-mentioned embodiments are only used to illustrate the implementation of the present invention and explain the technical features of the present invention, and are not intended to limit the scope of the present invention. Any changes or equivalence arrangements that can be easily accomplished by those skilled in the art fall within the scope of the present invention, and the scope of rights of the present invention should be based on the scope of claims.

Claims (21)

1. for a light-source system for a stereo projection apparatus, it is characterized in that, comprise:

One light-emitting component, suitable so that multiple the first wave band light to be provided; And

One color block module, has a rotating rotating disk, multiple wave band and penetrates conversion block and multiple wave bandReflection conversion block, described multiple wave bands penetrate conversion block and described multiple wave band reflection conversion block shapeBe formed on this rotating disk;

Wherein, in the time that described multiple the first wave band ray cast to described multiple wave bands penetrate conversion block,Penetrable described multiple wave bands penetrate conversion block and inspire and are different from described multiple the first wave band lightAnd penetrate multiple the first selected wave band light of changing block corresponding to described multiple wave bands, and when described manyWhen individual the first wave band ray cast is changed block to described multiple wave band reflections, described multiple wave bands reflections turnChanging block can excite and reflect and be different from described multiple the first wave band light and described multiple firstSelect wave band light multiple the second selected wave band light corresponding to described multiple wave band reflection conversion blocks;Wherein this light-source system comprises an optical filter, described multiple the first selected wave band light and described multiple secondSelected wave band light penetrates this optical filter with an angle, and this angle is between 80 degree to 110 degree.

2. light-source system as claimed in claim 1, wherein this optical filter is a narrow band pass filter.

3. light-source system as claimed in claim 1, wherein said multiple wave bands penetrate conversion block to be hadOne first red fluorescence region, one first blue-fluorescence region and one first green fluorescence region, when describedMultiple the first wave band light penetrates respectively this first red fluorescence region, this first blue-fluorescence region and is somebody's turn to doWhen the first green fluorescence region, inspire respectively multiple first of described multiple the first selected wave band lightSelect wave band red light, multiple the first selected wave band blue ray and multiple the first selected wave band green lightLine.

4. light-source system as claimed in claim 1, wherein said multiple wave band reflection conversion blocks haveOne second red fluorescence region, one second blue-fluorescence region and one second green fluorescence region, when describedWhen multiple the first wave band ray cast are changed block to described multiple wave band reflections, this second red fluorescence districtDescribed in territory, this second blue-fluorescence region and this second green fluorescence region can excite respectively and reflectMultiple second selected wave band red lights of multiple the second selected wave band light, multiple the second selected wave band indigo plantColoured light line and multiple the second selected wave band green light.

5. light-source system as claimed in claim 1, wherein this light-source system has a photoconductive tube, verticalDescribed multiple the first selected wave band light and described multiple the second selected wave band light in this optical filter are logicalCross after this optical filter, be projected to this photoconductive tube.

6. light-source system as claimed in claim 1, wherein this light-source system has multiple photoconductions and draws unitPart, one first smooth guide element of described multiple smooth guide elements is arranged at this light-emitting component and this colour wheel mouldBetween piece, this first photoconduction draws described in element reflects multiple the second selected wave band light to this optical filter.

7. light-source system as claimed in claim 6, wherein said multiple smooth guide elements have multipleTwo smooth guide elements, with by described multiple the first selected band of light line reflections to this optical filter.

8. light-source system as claimed in claim 1, wherein this light-source system has multiple lens to focus onDescribed multiple the first wave band light, described multiple the first selected wave band light and described multiple the second selected rippleSection light at least one of them.

9. light-source system as claimed in claim 1, wherein this stereo projection apparatus comprises an imaging mouldPiece, to change described multiple the first selected wave band light and described multiple the second selected wave band light respectivelyBecome one first projected picture and one second projected picture.

10. for a light-source system for a stereo projection apparatus, it is characterized in that, comprise:

One light-emitting component, suitable so that multiple the first wave band blue rays and multiple the second wave band blueness to be provided respectivelyLight; And

One color block module, has a rotating rotating disk, one first wave band penetrating region piece, multiple wave band and wearsConversion block, one second wave band penetrating region piece and multiple wave band reflection conversion block thoroughly, this first wave bandPenetrate block, described multiple wave bands and penetrate conversion block, this second wave band penetrating region piece and described multipleWave band reflection conversion block is formed on this rotating disk;

Wherein, penetrable this first wave band penetrating region piece of described multiple the first wave band blue rays is described manyPenetrable this second wave band penetrating region piece of individual the second wave band blue ray, when described multiple the first wave band bluenesssWhen ray cast to described multiple wave bands penetrate conversion block, can penetrate described multiple wave band and penetrate conversionBlock also inspires multiple the first selected wave band light that penetrate conversion block corresponding to described multiple wave bands,And in the time that described multiple the second wave band blue rays are projected to described multiple wave band reflection conversion block, described inMultiple wave band reflection conversion blocks can excite and reflect corresponding to described multiple wave band reflection transition zonesMultiple second selected wave band light of piece;

Wherein this light-source system comprises an optical filter, described multiple the first wave band blue rays, described multipleThe first selected wave band light, described multiple the second wave band blue rays and described multiple the second selected band of lightLine all penetrates this optical filter with an angle, and this angle is between 80 degree to 110 degree.

11. light-source systems as claimed in claim 10, wherein this optical filter is a narrow band pass filter.

12. light-source systems as claimed in claim 10, wherein said multiple wave bands penetrate conversion block toolThere are one first red fluorescence region and one first green fluorescence region, when described multiple the first wave band blue lightsWhen line penetrates respectively this first red fluorescence region and this first green fluorescence region, described in inspiring respectivelyMultiple the first selected wave band red lights and multiple first selected wave band of multiple the first selected wave band lightGreen light.

13. light-source systems as claimed in claim 10, wherein said multiple wave band reflection conversion block toolsThere are one second red fluorescence region and one second green fluorescence region, when described multiple the second wave band blue lightsWhen line is projected to described multiple wave band reflection conversion block, this second red fluorescence region and this second greenFluorescence area can excite respectively and reflect the multiple second selected of described multiple the second selected wave band lightWave band red light and multiple the second selected wave band green light.

14. light-source systems as claimed in claim 10, wherein this light-source system has a photoconductive tube, hangs downDirectly in described multiple first wave band blue rays of this optical filter, described multiple the first selected wave band light,Described multiple the second wave band blue ray and described multiple the second selected wave band light are by after this optical filterBe projected to this photoconductive tube.

15. light-source systems as claimed in claim 10, wherein this light-source system has multiple photoconductions and draws unitPart, one first smooth guide element of described multiple smooth guide elements is arranged at this light-emitting component and this colour wheel mouldBetween piece, this first photoconduction draws described in element reflects multiple the second selected wave band light to this optical filter.

16. light-source systems as claimed in claim 15, wherein said multiple smooth guide elements have multipleThe second smooth guide element, with by described multiple the first wave band blue rays, described multiple the first selected wave bandsLight and described multiple the second wave band blue ray reflex to this optical filter.

17. light-source systems as claimed in claim 10, wherein this light-source system has multiple lens to gatherBurnt described multiple the first wave band blue rays, described multiple the first selected wave band light, described multiple secondWave band blue ray and described multiple the second selected wave band light at least one of them.

18. light-source systems as claimed in claim 10, wherein said multiple the first wave band blue raysWavelength is 460nm.

19. light-source systems as claimed in claim 10, wherein said multiple the second wave band blue raysWavelength is 448nm.

20. light-source systems as claimed in claim 10, wherein said multiple the first wave band blue rays andDescribed multiple the second wave band blue ray is alternately luminous.

21. light-source systems as claimed in claim 10, wherein this stereo projection apparatus comprises an imaging mouldPiece, described image-forming module is by described multiple the first wave band blue rays and described multiple the first selected band of lightLine converts one first projected picture to, and by described multiple the second wave band blue rays and described multipleTwo selected wave band light convert one second projected picture to.