红外技术, 2014, 36 (7): 549, 网络出版: 2014-12-08
红外双色三视场光学系统设计
Design of Infrared Dual-band Triple-field Optical System
摘要
从分析红外材料在双波段上的色散特性出发, 设计了一款共光路红外中、长波三视场光学系统。系统采用二次成像方式, 满足 100%冷光阑效率, 在两个波段内同时完成了系统各视场的像差校正。设计结果表明, 系统在 4~5.m中波红外波段及 8~9.m长波红外波段焦距、视场及 F数均保持一致, 各视场光学传递函数在 20 lp/mm时均接近衍射极限。
Abstract
An infrared dual-band triple-field optical system with shared beam path is designed on the basis of analyzing the special dispersion properties of infrared material in the mid and long waveband. The system uses the form of secondary imaging which has corrected its aberration simultaneously in the dual band across the FOV and has a cold shield efficiency of 100%. The results show that the system has same focal length and same F number for all FOV in the waveband of 4~5.m and the waveband of 8~9.m, and the MTF value at 20 lp/mm approximates to the diffraction limit across the FOV.
贾星蕊, 李训牛, 曹易辉, 宁显慧, 周春芬. 红外双色三视场光学系统设计[J]. 红外技术, 2014, 36(7): 549. JIA Xing-rui, LI Xun-niu, CAO Yi-hui, NING Xian-hui, ZHOU Chun-fen. Design of Infrared Dual-band Triple-field Optical System[J]. Infrared Technology, 2014, 36(7): 549.