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Diffusion reflector plate, light guide pipe, laser light source device and projector

A technology of laser projector and diffuse reflection, which is applied in projection devices, optics, instruments, etc. It can solve the problems of poor light uniformity, diffusion sheets, and reflective mirrors with single functions, and achieves simple structure, convenient manufacture, and elimination of speckles. Effect

Active Publication Date: 2020-04-07
WUXI SEEMILE LASER DISPLAY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above-mentioned technical problem of the single function of the diffuser and the reflector, the embodiment of the present invention proposes a diffuse reflector; light pipe; also proposed a laser light source device and laser projector

Method used

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  • Diffusion reflector plate, light guide pipe, laser light source device and projector
  • Diffusion reflector plate, light guide pipe, laser light source device and projector
  • Diffusion reflector plate, light guide pipe, laser light source device and projector

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Embodiment 1 Diffuse reflection sheet

[0028] refer to figure 1 , the embodiment of the present invention proposes a diffuse reflection sheet G1, which can be used in a laser light source device, including a diffusion layer 101, a transmission layer 102 and a reflection layer 103; the transmission layer 102 is located between the diffusion layer 101 and the reflection layer 103 between. The diffusion layer 101 can scatter the excitation light emitted by the laser; the transmission layer 102 has no selectivity and can transmit the light incident to this layer; the reflective layer 103 has no selectivity and can reflect the light irradiated to this layer of light.

[0029] The excitation light is light emitted by a laser, and in the field of laser display, such as a laser projector, may be blue laser emitted by a blue laser.

[0030] The stimulated light is the light generated by exciting the wavelength conversion material with the excitation light. In the field of la...

Embodiment 2

[0036] Embodiment 2 Diffuse reflection sheet

[0037]Embodiments of the present invention also provide another diffuse reflection sheet, which can be used in a laser light source device, and includes a diffusion layer and a reflection layer, and the reflection layer is disposed on the diffusion layer. The diffusion layer can scatter the excitation light emitted by the laser; the reflective layer has no selectivity and can reflect the light irradiated to this layer.

[0038] The excitation light is light emitted by a laser, and in the field of laser display, such as a laser projector, may be blue laser emitted by a blue laser.

[0039] The stimulated light is the light generated by exciting the wavelength conversion material with the excitation light. In the field of laser display, such as laser projectors, it can be red, blue, green, yellow and so on.

[0040] In the field of laser display, such as laser projectors, both the excitation light and the received light emitted by ...

Embodiment 3

[0045] Example 3 Diffuse reflection sheet

[0046] refer to figure 2 , the embodiment of the present invention proposes a diffuse reflection sheet G2, which can be used in a laser light source device, and includes a selective reflection layer 201, a transmission layer 202, a diffusion layer 203 and a reflection layer 204 arranged in sequence; the diffusion layer 203 is located on the On the reflection layer 204 , the transmission layer 202 is located on the diffusion layer 203 , and the selective reflection layer 201 is used on the transmission layer 202 . The selective reflection layer 201 can reflect the received light and transmit the excitation light; the transmission layer 202 has no selectivity and can transmit the light incident to this layer; the diffusion layer 203 can scatter the excitation light emitted by the laser , the reflective layer 204 has no selectivity and can reflect the light irradiated to this layer.

[0047] The excitation light is light emitted by a...

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Abstract

The embodiment of the invention relates to a diffusion reflector plate, a light guide tube, a laser light source device and a laser projector. The diffusion reflector plate comprises a selective reflection layer, a transmission layer, a diffusion layer and a reflection layer which are arranged in sequence, the selective reflection layer can reflect excited light and can transmit exciting light emitted by the laser; the transmission layer is capable of transmitting light incident to the transmission layer; the diffusion layer can scatter exciting light emitted by the laser; the reflection layercan reflect light irradiated to the reflection layer; and the excited light is light generated by exciting a wavelength conversion material by the exciting light. The diffusion reflector plate can beused for manufacturing a light guide pipe for dodging, the dodging performance of the exciting light can be guaranteed, stimulated light can be prevented from being scattered, and the brightness of the stimulated light cannot be lost.

Description

technical field [0001] The invention belongs to the technical field of laser display, and in particular relates to a diffusion reflection sheet, a light guide, a laser light source device and a projector. Background technique [0002] Laser has good monochromaticity, using laser as a display light source can obtain a wider color gamut range, thus having richer color performance, higher color saturation, high brightness, long life, and low energy consumption. [0003] The laser light source of laser equipment can generally be divided into three types, one is the red, green and blue primary color laser as the light source, and the other is the laser fluorescent light source, which generally uses the blue laser to excite the red light, green light and green light produced by the phosphor powder. The directly transmitted blue light is the light source, and there is also a mixed light source, which uses a combination of LED light source and laser fluorescent light source to produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20
CPCG03B21/2033G03B21/204G03B21/2066G03B21/208
Inventor 葛明星陈龙
Owner WUXI SEEMILE LASER DISPLAY TECH
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