基于3DLP投影机超长后截距双远心照明光路的设计  

Based on the 3DLP Projector Long Intercept Double Telecentric Illumination Light Path Design

作　　者：柴炎 耿安兵[1] 李升辉[1] 崔小强[1] 

机构地区：[1]华中光电技术研究所-武汉光电国家实验室,湖北武汉430223

出　　处：《光学与光电技术》2017年第1期76-80,共5页Optics & Optoelectronic Technology

基　　金：中国船舶重工集团公司装备预研支撑技术(621010×××××)资助项目

摘　　要：为了与3DLP投影机中分光合光棱镜组实现对接,设计了一种基于3DLP投影机的超长后截距双远心照明光路,工作波段为400~700nm,放大倍率为1.9倍,物方数值孔径为0.4,像方数值孔径为0.2,后截距达到140 mm,物方远心度和像方远心度都小于1°,采用尺寸为7.6mm×4.8mm×62mm的方棒匀光和0.67inch的DMD芯片,中继照明系统满足了方棒要与DMD相匹配的要求,并且具有高的照度均匀性和80%的能量利用率。The 3DLP projector with long interception and double telecentric illumination light path is designed.The operating wavelength of the illumination light path is 400~700nm.The magnification is 1.9.The object space numerical aperture is 0.4.The image space numerical aperture is 0.2.The backward interception reaches 140 mm.Besides,the telecentric angle of object space and image space are both less than 1°.The square rods with the size of 7.6mm×4.8mm×62mm and0.67 inch DMD chips are used.The relaying illumination system satisfies the match requirements between DMD and square rods.At the same time,the high illuminance uniformity and 80% utilization rate of the light energy are obtained.

关 键 词：投影机 方棒 双远心 超长后截距 照明光路 

分 类 号：TN873[电子电信—信息与通信工程]