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Modular high-efficiency heat dissipation uniform field laser light source system

A laser light source and modular technology, which is applied in the field of laser projection, can solve the problem of uneven laser heat dissipation and projection images, achieve uniform image display without speckle, optimize heat dissipation structure, and prolong life

Pending Publication Date: 2019-12-31
SHANXI OVISION OPTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention mainly solves the problem of heat dissipation of the laser and the unevenness of the projection screen, and proposes a modular high-efficiency heat dissipation uniform-field laser light source system. By improving the heat dissipation structure of the laser and adding a vibrating scattering sheet structure to the laser optical path, the temperature of the laser can be controlled. Nominal operating temperature range, while obtaining a speckle-free and uniform projection image

Method used

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  • Modular high-efficiency heat dissipation uniform field laser light source system
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  • Modular high-efficiency heat dissipation uniform field laser light source system

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Embodiment Construction

[0022] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] A modular high-efficiency heat dissipation uniform-field laser light source system, such as figure 1 As shown, it includes a blue laser light source I1, a diffuser I2, a blue-transparent yellow beam combiner 3, a red-transparent blue-green beam combiner 4, a lens group I5, a fluorescent unit 6, an RGB laser light source 7, a vibration diffuser 8, and a lens I9. , Lens group II10, light pipe 11.

[0024] Such as figure 1 As shown, the light beam emitted by the blue laser light source I1 passes through the scattering sheet I2 and then enters the anti-blue translucent yellow beam combiner 3, and then enters the fluorescent unit 6 through the lens group I5. Then the light emitted by the blue laser light source 1 passes through the scattering sheet I2 , transmits through the anti-blue translucent yellow beam combiner 3 , and is focused to ...

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Abstract

The invention discloses a modular high-efficiency heat dissipation uniform field laser light source system which comprises a blue laser light source I1, a scattering sheet I2, an anti-blue and yellow-transmitting beam combiner 3, an anti-red and blue-transmitting beam combiner 4, a lens group I5, a fluorescent unit 6, an RGB laser light source 7, a vibrating scattering sheet 8, a lens I9, a lens group II10 and a light transmission tube 11. The light beam emitted by the blue laser light source I 1 passes through the scattering sheet I 2 and then enters the anti-blue and yellow-transmitting beamcombiner 3 and then is incident to the fluorescent unit 6 through the lens group I 5. The beam generated after excitation by the fluorescent unit 6 is incident to the light transmission tube 11 through the lens group I 5, the anti-blue and yellow-transmitting beam combiner 3, the anti-red and blue-transmitting beam combiner 4 and the lens group II 10 in turn. The modular high-efficiency heat dissipation uniform field laser light source system can effectively dissipate the heat generated by the laser and obtain uniform picture projection output so as to have good practical application value.

Description

technical field [0001] The invention relates to the technical field of laser projection, in particular to a modular high-efficiency heat dissipation laser fluorescent light source (projection) system. Background technique [0002] As the most advanced projection technology at present, laser projection has developed rapidly in recent years and has formed three main product forms: pure laser light source, laser fluorescent wheel and laser LED light source. Among them, laser projectors with phosphor powder are the most cost-effective machines. type. Laser fluorescence projection is irradiated on the fluorescent powder by blue light laser to produce yellow light, which is combined with another part of the blue light machine laser that transmits the optical path, which greatly reduces the coherence of the light source and can effectively eliminate speckle. However, high lumens or long-term laser irradiation on the fluorescent wheel will cause the local temperature of the phospho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20G03B21/16G02B27/48
CPCG03B21/2033G03B21/2013G03B21/204G03B21/208G02B27/48G03B21/16G03B21/2066G03B33/12
Inventor 胡元元陈海洋李辉燕鑫宇冀翔宇
Owner SHANXI OVISION OPTRONICS CO LTD
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