Laser projector capable of eliminating speckle
By designing a light mixing component and speckle removal plate in the laser projector, and using a light adjustment unit and microlens array to disrupt light coherence, the speckle problem in laser display is solved, achieving efficient imaging effect and a compact laser projector.
CN116661230BActive Publication Date: 2026-06-23BEIJING JIGUANGTONGDA TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING JIGUANGTONGDA TECH CO LTD
- Filing Date
- 2023-05-26
- Publication Date
- 2026-06-23
Smart Images
Figure CN116661230B_ABST
Abstract
The application relates to a speckle-eliminating laser projector, which comprises a plurality of laser light sources, a light mixing assembly, a speckle-eliminating sheet, a projection chip and a projection lens arranged along a light path in sequence, the laser light sources are used for emitting RGB light, the light mixing assembly is used for mixing the RGB light into white light, the speckle-eliminating sheet is used for eliminating the speckle of the white light, the speckle-eliminating sheet is formed by splicing a plurality of light adjusting units, and the speckle-eliminating sheet comprises an incident light surface, and the incident light surface is formed with array-arranged microlenses. The application helps to improve the imaging effect of the laser projector.
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Citation Information
Patent Citations
CN201845132U
JP2001281599A