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

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...

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

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