Light source system and laser projection equipment
By using polarized beam alignment and combination in laser projection devices, the system addresses the bulkiness and cost issues of current light source systems, achieving enhanced brightness and compactness.
CN119717379AActive Publication Date: 2025-03-28QINGDAO HISENSE LASER DISPLAY CO LTD
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Patent Information
- Application Number
- CN202311281815.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-28
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2043-09-28
AI Technical Summary
Technical Problem
Current light source systems for laser projection devices are bulky due to the need for multiple mirrors to ensure uniform light distribution, which compromises their compactness and cost-effectiveness.
Method used
The system employs a combination of first and second lasers with adjustable polarization, using a polarized combining component to align and combine their beams, reducing the need for additional mirrors and enhancing light uniformity and brightness.
Benefits of technology
This design minimizes light scatter, increases light source brightness, and reduces system size by eliminating unnecessary mirrors, resulting in improved light uniformity and cost-effectiveness.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention provides a light source system and laser projection equipment, the light source system comprises a first laser and a second laser, the first laser is used for emitting laser beams with at least two different wavelengths, and the different laser beams emitted by the first laser have different polarization directions; laser beams emitted by the first laser comprise a first laser beam with a first wavelength; the second laser is used for emitting a second laser beam with the first wavelength, and the polarization direction of the second laser beam is the same as that of the first laser beam. According to the light source system, certain color matching in the whole light source system can be increased, the brightness of the light source system is further increased, the light spot uniformity is high, and meanwhile the size of the light source system can be reduced.
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