基于光栅光调制器的投影物镜设计  

Projection Objective Design of Grating Light Modulator

作　　者：史玲娜[1] 潘英俊[2] 董光先 

机构地区：[1]重庆交通大学理学院,重庆400074 [2]重庆大学光电工程学院,重庆400030 [3]重庆市计量质量检测研究院,重庆400020

出　　处：《光学学报》2010年第11期3283-3288,共6页Acta Optica Sinica

基　　金：国家自然科学基金(60976084);重庆市自然科学基金(CSTC;2009BB3352)资助课题

摘　　要：设计了一种在发光二极管(LED)光源照明下,基于4f信息处理系统的光栅光调制器的投影物镜。对经光栅光调制器的衍射光进行滤波处理,实现对调制后像的投影放大显示。设计结果表明:该物镜总长70.71 mm,最大口径12.40 mm;整体像差控制在理想范围之内,可以满足成像要求。根据设计结果搭建实验系统,实验结果与理论分析一致,说明了设计的可行性。The projection objective of grating light modulator based on 4f signal processing system is designed,which uses LED as light source.By filtering the diffracted light via grating light modulator,the modulated image is amplified and projected.The design result shows that the total length of projection objective is 70.71 mm,and the biggest caliber is 12.40 mm.The whole aberration is controlled within an ideal range,which can satisfy the image-forming requirement.The experimental system is built based on the design result,and the experimental result is in according with theoretical analysis,which shows the feasibility of the design.

关 键 词：光学设计 投影显示 光栅光调制器 4f信息处理 发光二极管 

分 类 号：TH741.5[机械工程—光学工程]