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Laser speckle-removing optical component, laser source and laser projection equipment

机译:去除激光斑点的光学部件,激光源和激光投影设备

摘要

This disclosure provides a laser speckle-removing optical component, including a beam-shrinking lens group and a diffusion sheet arranged on a laser emergent optical path, where the beam-shrinking lens group includes a first beam-shrinking lens and a second beam-shrinking lens, and the diffusion sheet is located between the first beam-shrinking lens and the second beam-shrinking lens. The arrangement of the diffusion sheet between the first beam-shrinking lens and the second beam-shrinking lens, increases the area of speckles received by the diffusion sheet component, reduces energy density of the light received, and is able to alleviate the accumulation phenomenon of dust particles on the diffusion sheet, therefore, alleviating light attenuation phenomenon, and prolonging the service life of the laser source. This disclosure also provides a double-color laser source, a three-color laser source and a laser projection equipment applying the above laser speckle-removing optical component.
机译:本公开提供了一种去除激光斑点的光学部件,包括:光束收缩透镜组;和布置在激光出射光路上的扩散片,其中,光束收缩透镜组包括第一光束收缩透镜和第二光束收缩透镜。透镜,并且扩散片位于第一光束收缩透镜和第二光束收缩透镜之间。扩散片在第一光束收缩透镜和第二光束收缩透镜之间的布置,增加了扩散片组件所接收的斑点的面积,降低了所接收的光的能量密度,并且能够减轻光的累积现象。因此,扩散片上的灰尘颗粒将减轻光衰减现象,并延长激光源的使用寿命。本公开还提供了一种双色激光源,三色激光源和应用上述去除激光斑点的光学部件的激光投影设备。

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