CN204254511U - Fly's-eye lens device and relevant light-source system - Google Patents

Abstract

The utility model provides a fly-eye lens device and a related light source system, comprising a first lens and a second lens parallel to each other, the light-emitting surface of the first lens has a first fly-eye lens array, and the entrance of the second lens The light surface has a second fly-eye lens array, the light-emitting surface of the second lens has a third fly-eye lens array, the light-emitting surface of the first lens is opposite to the light-incident surface of the second lens, and the second The fly-eye lens is equal in size to the first fly-eye lens, and the third fly-eye lens is smaller than the second fly-eye lens. Since the light-emitting surface of the second lens has a third fly-eye lens array, and the third fly-eye lens is smaller than the second fly-eye lens, the light-emitting angle of the light can be increased, and the fly-eye lens device can be improved on the basis of improving the uniformity of the outgoing light. and the light output efficiency of the light source system.

Description

Fly-eye lens arrangement and associated light source system

technical field

The utility model relates to the technical field of projection display, in particular to a fly-eye lens device and a related light source system.

Background technique

With the rapid development of semiconductor light sources, LED (Light-Emitting Diode, light-emitting diode) light sources are widely used in various industries due to their advantages of energy saving, environmental protection, high brightness and controllable color temperature. Moreover, with the reduction of LED cost and the improvement of luminous efficiency, LED light source is very likely to replace traditional light source and become the most widely used lighting source.

An existing zoom lighting system using an LED light source, as shown in FIG. 1 , includes a light source 101 , a first lens 102 , a second lens 103 , a fly-eye lens 104 and a third lens 105 . In this zoom lighting system, the light emitted by the light source 101 is received by the first lens 102, and then enters the second lens 103 for dimming, that is, the light is modulated into parallel light and then emitted. The three lenses 105 project onto a predetermined plane. Wherein, the third lens 105 can move relative to the fly-eye lens 104 to adjust the size of the light spot.

In the above-mentioned zoom lighting system, both the light incident surface and the light exit surface of the fly-eye lens 104 have a plurality of microlenses 1040 arranged in an array to achieve uniformity of light. Although the fly-eye lens with this structure can play a certain light uniformity effect, the light uniformity effect of the fly-eye lens is relatively poor, and the function is relatively single, which cannot meet the needs of a lighting system with higher requirements.

Utility model content

In view of this, the utility model provides a fly-eye lens device and a related light source system to solve the problems that the fly-eye lens has poor uniformity effect and single function in the existing zoom lighting system.

In order to achieve the above object, the utility model provides the following technical solutions:

A fly-eye lens device, comprising a first lens and a second lens parallel to each other, the light-emitting surface of the first lens has a first fly-eye lens array, and the light-incident surface of the second lens has a second fly-eye lens array, so The light-emitting surface of the second lens has a third fly-eye lens array, the light-emitting surface of the first lens is opposite to the light-incident surface of the second lens, and the second fly-eye lens is about the same size as the first fly-eye lens Equally, the third fly-eye lens is smaller than the second fly-eye lens.

Preferably, the light incident surface and the light exit surface of the first lens are two opposite surfaces, and the light incident surface of the first lens is a plane; the light incident surface and the light exit surface of the second lens are opposite two surfaces.

Preferably, the surface of the third fly-eye lens is a smooth surface or a frosted surface.

A light source system, comprising:

A light-emitting component with at least one light-emitting module;

a first lens that adjusts the light emitted by the light-emitting component into light with a certain angle;

A fly-eye lens device located on the optical path of the light emitted by the first lens, the fly-eye lens device is the fly-eye lens device as described in any one of the above;

The light emitted by the fly-eye lens device is projected onto a second lens on a predetermined plane, and the second lens can move relative to the fly-eye lens device.

Preferably, it also includes:

a third lens located between the light emitting component and the first lens and converging light.

Preferably, the at least one light-emitting module is arranged in a circular array, wherein at least one light-emitting module is located on the center of the circular array, and other light-emitting modules are evenly distributed on the ring of the circular array .

Preferably, the light-emitting module includes a substrate and LED light sources located on the surface of the substrate, the LED light sources on the light-emitting module are arranged in an approximately regular hexagonal array, and the regular hexagonal array includes a first A light source array and a second light source array located around the first light source array.

Preferably, the first light source array is a rectangular array, the second light source array includes a first light source group, a second light source group, a third light source group and a fourth light source group, and the first to fourth light source groups The light source groups are sequentially arranged on the four sides of the rectangular array.

Preferably, the first light source array is a rectangular array composed of four white LED light sources.

Preferably, the first light source group includes a red LED light source and an amber LED light source arranged clockwise, and the second light source group includes a blue LED light source and a cyan LED light source arranged clockwise LED light source, the third light source group includes a red LED light source and an amber LED light source arranged in a clockwise direction, and the fourth light source group includes a dark blue LED light source and a green LED light source arranged in a clockwise direction LED light source.

Preferably, the first light source group includes a red LED light source and an amber LED light source arranged clockwise, and the second light source group includes a blue LED light source and a green LED light source arranged clockwise. LED light source, the third light source group includes a red LED light source and an amber LED light source arranged in a clockwise direction, and the fourth light source group includes a blue LED light source and a green LED light source arranged in a clockwise direction LED light source.

Preferably, the first light source group includes a red LED light source and a white LED light source arranged clockwise, and the second light source group includes a blue LED light source and a green LED light source arranged clockwise As a light source, the third light source group includes a red LED light source and a white LED light source arranged in a clockwise direction, and the fourth light source group includes a blue LED light source and a green LED light source arranged in a clockwise direction .

Compared with the prior art, the technical solution provided by the utility model has the following advantages:

In the fly-eye lens device and the related light source system provided by the utility model, since the first fly-eye lens on the light-emitting surface of the first lens is equal in size to the second fly-eye lens on the light-incident surface of the second lens, and the first The focal point of the fly-eye lens is located at the center of the second fly-eye lens, so the light can be uniformed, and since the light-emitting surface of the second lens has a third fly-eye lens array, the third fly-eye lens is smaller than the second fly-eye lens, so , can increase the light exit angle of the light, and improve the light exit efficiency of the fly-eye lens device and the light source system on the basis of improving the uniformity of the exit light.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description It is only an embodiment of the utility model, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

FIG. 1 is a schematic structural diagram of an existing zoom lighting system;

Fig. 2a is a schematic structural diagram of a fly-eye lens device provided by Embodiment 1 of the present invention;

Fig. 2b is a schematic structural view of the first fly-eye lens to the third fly-eye lens provided by Embodiment 1 of the present invention;

Fig. 3 is a schematic structural diagram of a light source system provided by Embodiment 2 of the present invention;

Fig. 4 is a schematic structural diagram of a light-emitting module provided by Embodiment 2 of the present invention;

Fig. 5 is a schematic structural diagram of a light-emitting component provided by Embodiment 2 of the present invention;

Fig. 6 is a schematic structural diagram of another light-emitting component provided by Embodiment 2 of the present utility model;

Fig. 7 is an arrangement diagram of an LED light source provided by Embodiment 2 of the present utility model;

Fig. 8 is an arrangement diagram of another LED light source provided by Embodiment 2 of the present invention;

Fig. 9 is an arrangement diagram of another LED light source provided by the second embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Embodiment one

This embodiment provides a fly-eye lens device, as shown in Figure 2a, comprising a first lens 20 and a second lens 21 parallel to each other, the light-emitting surface 202 of the first lens 20 has a first fly-eye lens array, that is, the first lens The light-emitting surface 202 of 20 has a plurality of first fly-eye lenses 2020 arranged in an array, and the light-incident surface 211 of the second lens 21 has a second fly-eye lens array, that is, the light-incidence surface 211 of the second lens 21 has arrayed A plurality of second fly-eye lenses 2110 are arranged, and the light-emitting surface 212 of the second lens 21 has a third fly-eye lens array, that is, the light-emitting surface 212 of the second lens 21 has a plurality of third fly-eye lenses 2120 arranged in an array.

As shown in Figure 2a, the light incident surface 201 of the first lens 20 is a plane, the light incident surface 201 and the light exit surface 202 of the first lens 20 are two opposite surfaces, the light incident surface 211 and the light exit surface of the second lens 21 212 is also two opposing surfaces, and the light incident surface 211 of the second lens 21 is set opposite to the light output surface 202 of the first lens 20. Based on this, the first fly-eye lens array and the second fly-eye lens array in this embodiment The second fly-eye lens 2110 and the first fly-eye lens 2020 are oppositely arranged and one-to-one corresponding in size, and the third fly-eye lens 2120 is smaller than the second fly-eye lens 2110 .

As shown in Figure 2b, the first fly-eye lens 2020 has a convex surface 2021 and a bottom surface 2022 opposite to the convex surface 2021, and the second fly-eye lens 2110 has a convex surface 2111 and a bottom surface opposite to the convex surface 2111 2112 , the third fly-eye lens 2120 has a convex surface 2121 and a bottom surface 2122 opposite to the convex surface 2121 .

Wherein, the convex surface 2111 of the second fly-eye lens 2110 is opposite to the convex surface 2021 of the first fly-eye lens 2020, the bottom surface 2122 of the third fly-eye lens 2120 is opposite to the bottom surface 2112 of the second fly-eye lens 2110, and the second fly-eye lens 2110 is opposite to the first fly-eye lens 2110. The same size of the fly-eye lens 2020 means that the diameter of the bottom surface 2112 of the second fly-eye lens 2110 is equal to the diameter of the bottom surface 2022 of the first fly-eye lens 2020, and the convex surface 2111 of the second fly-eye lens 2110 has the same shape as the convex surface 2021 of the first fly-eye lens 2020. curvature. The fact that the third fly-eye lens 2120 is smaller than the second fly-eye lens 2110 means that the diameter of the bottom surface 2122 of the third fly-eye lens 2120 is smaller than the diameter of the bottom surface 2112 of the second fly-eye lens 2110 .

Since the focal point of the first fly-eye lens 2020 is located at the center of the second fly-eye lens 2110, the incident light beam is focused on the center of the second fly-eye lens 2110 after passing through the first fly-eye lens 2020. The beam is divided into multiple small beams, and each divided small beam is superimposed with the symmetrical small beam, so the slight inhomogeneity in the range of each small beam is compensated, so that the entire beam Light energy is utilized efficiently and evenly.

Thereafter, the light passing through the second fly-eye lens 2110 is incident on the third fly-eye lens 2120. Since the third fly-eye lens 2120 is smaller than the second fly-eye lens 2110, the exit angle of the light rays can be increased through the third fly-eye lens 2120, improving the output On the basis of the uniformity of light, the light extraction efficiency of the fly-eye lens device is further improved. In this embodiment, the surface of the third fly-eye lens 2120 may be a smooth surface or a frosted surface, so as to further improve the uniformity of outgoing light through the frosted surface.

In the fly-eye lens device provided in this embodiment, since the first fly-eye lens on the light-emitting surface of the first lens is equal in size to the second fly-eye lens on the light-entrance surface of the second lens, and the focus of the first fly-eye lens is located at the on the center of the second fly-eye lens, therefore, the light can be uniformized, and since the light-emitting surface of the second lens has a third fly-eye lens array, the third fly-eye lens is smaller than the second fly-eye lens, therefore, the light can be increased The light output angle improves the light output efficiency of the fly-eye lens device on the basis of improving the uniformity of the output light.

Embodiment two

This embodiment provides a light source system, as shown in FIG. 3 , including a light emitting component 302 having at least one light emitting module 301, a third lens 303 for collecting light emitted by the light emitting component 302, and a third lens 303 The first lens 304 that adjusts the emitted light to light with a certain angle, the fly-eye lens device 305 located on the optical path of the emitted light from the first lens 304, and the second lens 306 that projects the emitted light from the fly-eye lens device 305 to a predetermined plane.

In this embodiment, the fly-eye lens device 305 is the fly-eye lens device provided in Embodiment 1 above, that is, the fly-eye lens device 305 includes a first lens and a second lens parallel to each other, and the light-emitting surface of the first lens has a first fly-eye lens array , the light incident surface of the second lens has a second fly-eye lens array, the light exit surface of the second lens has a third fly eye lens array, and the light exit surface of the first lens is opposite to the light incident surface of the second lens, the second fly eye lens The size of the first fly-eye lens is equal to that of the first fly-eye lens, and the third fly-eye lens is smaller than the second fly-eye lens, so as to improve the light output efficiency of the fly-eye lens device 305 on the basis of improving the uniformity of outgoing light.

As shown in FIG. 3 , after the light-emitting module 301 on the light-emitting component 302 emits light, the third lens 303 collects the light, and the first lens 304 adjusts the light emitted by the third lens 303 into light with a certain angle. The light emitted by the first lens 304 is incident on the fly-eye lens device 305 at a certain angle, and after the fly-eye lens device 305 homogenizes the approximately parallel incident light, the second lens 306 projects it onto a predetermined plane, wherein the first The second lens 306 can move relative to the fly-eye lens device 305 to adjust the size of the output light spot. Since the third fly-eye lens 2120 in the fly-eye lens device 305 can change the outgoing angle of the light, it can improve the light output efficiency on the basis of improving the uniformity of the outgoing light.

In this embodiment, the lighting module 301 includes a substrate 3010 and an LED light source 3011 located on the surface of the substrate 3010. As shown in FIG. 4, the LED light source 3011 located on the surface of the substrate 3010 may include four white LED light sources W, two Red LED light source R, two blue LED light sources B, two green LED light sources G and two amber LED light sources A, and these LED light sources are arranged in a regular hexagonal array to form a uniform light spot. The light source system provided in this embodiment makes the mixed white light more uniform by using the above LED light source, and uses the amber LED light source to make the mixed white light more pure in color and more in line with the requirements of the lighting system.

In this embodiment, the light emitting component 302 may include one light emitting module 301, or may include multiple light emitting modules 301, so as to increase the light output brightness of the light source system. When the light-emitting component 302 includes a plurality of light-emitting modules 301, preferably, the plurality of light-emitting modules 301 are arranged in a circular array, wherein at least one light-emitting module is located on the center of the circular array, and the other light-emitting modules are evenly arranged. Arranged on the ring of the circular array.

As shown in Figure 5, the light-emitting module 3012 is located on the center of the circular array, and the light-emitting modules 3013-3018 are sequentially arranged on the ring of the circular array, and the light-emitting modules 3013-3018 Each side of each side is parallel to each other, of course, the present invention is not limited thereto, as shown in Figure 6, the side closest to the center of the circle from the light emitting module 3013 to the light emitting module 3018 can be located on each tangent of the circle.

In this embodiment, the light emitting modules located on the ring are evenly arranged, as shown in Figures 5 and 6, the light emitting module 3013, the light emitting module 3012 and the light emitting module 3016 are located on the same straight line, the light emitting module 3014, The light-emitting module 3012 and the light-emitting module 3017 are located on the same straight line, the light-emitting module 3015, the light-emitting module 3012 and the light-emitting module 3018 are located on the same straight line, and the angles between the lines are equal, as shown in Figure 5 The angle a in is equal to the angle b.

In addition, in this embodiment, the LED light sources on each light emitting module are arranged in an approximately regular hexagonal array. As shown in Figure 7, the approximately regular hexagonal array includes a first light source array 80 and a second light source array 81 located around the first light source array, wherein the first light source array 80 is a rectangular array, and the second light source array 81 includes a second light source array 81. A light source group 810 , a second light source group 811 , a third light source group 812 and a fourth light source group 813 , and the first light source group 810 to the fourth light source group 813 are sequentially arranged on four sides of the first light source array 80 .

In this embodiment, as shown in FIG. 7 , the first light source array 80 includes four white LED light sources W, and the first light source group 810 in the second light source array 81 includes a red LED light source R arranged clockwise. and an amber LED light source A, the second light source group 811 includes a blue LED light source B and a cyan LED light source C arranged clockwise, and the third light source group 812 includes a red LED arranged clockwise The light source R and an amber LED light source A, the fourth light source group 813 includes a deep blue LED light source dB and a green LED light source G arranged clockwise.

In other embodiments, another LED light source arrangement structure of the light emitting module is shown in FIG. 8 , the first light source array 80 includes four white LED light sources W, and the first light source group 810 in the second light source array 81 includes A red LED light source R and an amber LED light source A arranged clockwise, the second light source group 811 includes a blue LED light source B and a green LED light source G arranged clockwise, the third light source group 812 includes a red LED light source R and an amber LED light source A arranged in clockwise direction, and the fourth light source group 813 includes a blue LED light source B and a green LED light source G arranged in clockwise direction.

In another embodiment, another LED light source arrangement structure of the light emitting module is shown in FIG. 9, the first light source array 80 includes four white LED light sources W, and the first light source group 810 in the second light source array 81 It includes a red LED light source R and a white LED light source W arranged in a clockwise direction. The second light source group 811 includes a blue LED light source B and a green LED light source G arranged in a clockwise direction. The third light source group 812 includes a red LED light source R and a white LED light source A arranged in clockwise direction, and the fourth light source group 813 includes a blue LED light source B and a green LED light source G arranged in clockwise direction.

Since the colored LED light source is located around the white LED light source, the color of the mixed white light can be made more uniform, and by using the amber LED light source, cyan LED light source or dark blue LED light source, the light emitted by the light emitting part 302 can be enlarged. The color gamut makes the color of the mixed white light more pure.

The light-emitting component 302 in this embodiment may include multiple light-emitting modules as shown in FIG. 7 , or may include multiple light-emitting modules as shown in FIG. 8 or multiple light-emitting modules as shown in FIG. 9 . It may include at least two kinds of light-emitting modules as shown in FIGS. 7-9 , and the present invention is not limited thereto.

The light source system provided in this embodiment improves the uniformity and light output efficiency of the emitted light through the fly-eye lens device, improves the light output brightness through the light-emitting modules arranged in a circular matrix, and improves the mixing efficiency through the LED light sources arranged in an approximate regular hexagonal matrix. The uniformity of white light and the use of amber LED light source make the mixed white light color more pure and more in line with the needs of the light source lighting system.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other. The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (12)

1. A fly-eye lens device, characterized in that it comprises a first eyeglass and a second eyeglass parallel to each other, the light-emitting surface of the first eyeglass has the first fly-eye lens array, and the light-incidence surface of the second eyeglass has the first fly-eye lens array. Two fly-eye lens arrays, the light-emitting surface of the second lens has a third fly-eye lens array, the light-emitting surface of the first lens is opposite to the light-incident surface of the second lens, and the second fly-eye lens is connected to the light-incident surface of the second lens. The first fly-eye lens is equal in size, and the third fly-eye lens is smaller than the second fly-eye lens. 2. fly eye lens device according to claim 1, is characterized in that, the incident surface of described first eyeglass and the light exit surface are opposite two surfaces, and the incident surface of described first eyeglass is plane; So The light incident surface and the light exit surface of the second lens are two opposite surfaces. 3. The fly-eye lens device according to claim 2, wherein the surface of the third fly-eye lens is a smooth surface or a frosted surface. 4. A light source system, characterized in that, comprising: A light-emitting component with at least one light-emitting module; a first lens that adjusts the light emitted by the light-emitting component into light with a certain angle; A fly-eye lens device located on the optical path of the light emitted by the first lens, the fly-eye lens device being the fly-eye lens device according to any one of claims 1-3; The light emitted by the fly-eye lens device is projected onto a second lens on a predetermined plane, and the second lens can move relative to the fly-eye lens device. 5. The light source system according to claim 4, further comprising: a third lens located between the light emitting component and the first lens and converging light. 6. The light source system according to claim 4 or 5, wherein the at least one light-emitting module is arranged in a circular array, wherein at least one light-emitting module is located on the center of the circular array, and the other The light emitting modules are evenly distributed on the rings of the circular array. 7. The light source system according to claim 6, wherein the light emitting module comprises a substrate and an LED light source located on the surface of the substrate, and the LED light source on the light emitting module is in an approximately regular hexagonal array Arranged, and the regular hexagonal array includes a first light source array and a second light source array located around the first light source array. 8. The light source system according to claim 7, wherein the first light source array is a rectangular array, and the second light source array includes a first light source group, a second light source group, a third light source group and a fourth light source group light source groups, and the first to fourth light source groups are sequentially arranged on four sides of the rectangular array. 9. The light source system according to claim 8, wherein the first light source array is a rectangular array composed of four white LED light sources. 10. The light source system according to claim 9, wherein the first light source group includes a red LED light source and an amber LED light source arranged clockwise, and the second light source group includes A blue LED light source and a cyan LED light source arranged clockwise, the third light source group includes a red LED light source and an amber LED light source arranged clockwise, the fourth light source group includes A dark blue LED light source and a green LED light source are arranged clockwise. 11. The light source system according to claim 9, wherein the first light source group includes a red LED light source and an amber LED light source arranged clockwise, and the second light source group includes A blue LED light source and a green LED light source arranged clockwise, the third light source group includes a red LED light source and an amber LED light source arranged clockwise, the fourth light source group includes A blue LED light source and a green LED light source are arranged clockwise. 12. The light source system according to claim 9, wherein the first light source group includes a red LED light source and a white LED light source arranged clockwise, and the second light source group includes A blue LED light source and a green LED light source arranged in sequence, the third light source group includes a red LED light source and a white LED light source arranged in a clockwise direction, and the fourth light source group includes a clockwise A blue LED light source and a green LED light source arranged in sequence.