We design a 645 nm laser diode (LD) with a narrow vertical beam divergence angle based on the mode expansion layer. The ......

在分析激光投影、激光线扫描和激光点扫描三类显示技术的原理、特点及光源需求的基础上，对几种常见的激光显示用光源进行了性能比较......

In this paper, a solution for speckle reduction using phase plate array (PPA) and lens array (LA) in a motionless way is......