Optical design of laser projection display system by light pipe
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摘要: 在方棒照明系统的基础上，根据激光光源的发光特性和准直性，设计了一款用于激光投影显示的，基于光棒匀光的照明光路系统。此系统具有结构简单、开发周期短、加工成本低的优点。仿真结果表明：设计的激光投影机光能量利用率达到78%，均匀度达到85%，满足激光投影显示中对集光和照明的设计要求。Abstract: According to the characteristics of the laser and its special collimator, we designed a kind of laser projection display system with uniform illumination, using a light pipe as the light homogenization system. The light pipe has several advantages, such as a simple structure, a short period of development, and low cost. The simulation results show that luminous efficiency of the entire illumination system is 78%, and the uniformity is 85%, which reach the designed demands of the optical engine for the laser projection display system.
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Key words:
- laser display /
- optical propagation /
- light pipe /
- optical engine /
- illumination distribution
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