设计了一种大功率、小体积、可有效降低散斑的投影用二维激光光源模块。该激光光源模块由二维激光二极管（LD）阵列和微透镜阵列两部分组成，不需要其他光学器件，可直接获得均匀的矩形照明光斑。使用Zemax软件建立了具体的模型，分别分析了LD的发散角、个数、间距以及光束经透镜后发散角等参数对光能利用率、光束形状、光斑大小、光束照明位置以及光束均匀性的影响。根据理论分析设计了一种用于液晶显示器(LCD)投影系统的二维激光光源模块。

A two-dimensional laser source with high power, small size and the ability to suppress speckle noise is designed for projection. This laser source module is composed of an array of laser diodes and a lens array which can realize uniform rectangular beam without other optical elements. The source module is built in Zemax software. The influences of the factors including the divergence angle, the number, the interval of laser diode (LD), and the beam divergence angle after the micro lens on the light efficiency, the beam size, the illumination distance and the beam uniformity are studied. A two-dimensional laser source module for liquid crystal display (LCD) projection is built based on theoreical analysis.