结构光场通常在空间分布上具有独特的光学特征，在显微、成像、通信和测量等领域有广泛的应用。结构光器件的种类繁多，制作材料和调制机理各不相同，在调制速度、调制深度、空间分辨率等性能指标上存在较大差异。介绍了主要的结构光器件（液晶空间光调制器、数字微镜器件、硅基光学相控阵、LED阵列等）的工作原理及其性能特点，分析了这些结构光器件各自的适用范围，总结了结构光技术在显示投影、显微成像、鬼成像、三维成像、激光雷达等领域的典型应用情况。系统地展示了多种结构光器件的最新研究进展和前沿技术应用，这将为相关领域的研究者提供参考。

Structured light field usually has unique optical characteristics in spatial distribution, and is widely used in the fields of microscopy, imaging, communication, and measurement. There are many kinds of structured light devices with different materials and modulation mechanisms. There are great differences in the performance indicators such as modulation speed, modulation depth, and spatial resolution. This paper introduces the working principle and performance characteristics of the main structured light devices (liquid crystal spatial light modulator, digital micromirror device, silicon-based optical phased array, LED array, etc.), analyzes their respective application ranges, and summarizes the typical applications of structured light technology in the fields of display projection, microscopic imaging, ghost imaging, three-dimensional imaging, lidar, etc. This paper systematically shows the latest research progress and cutting-edge technology applications of a variety of structured light devices, which will provide reference for researchers in related fields.