摘要
设计了一种用于近红外观测相机的大视场大相对孔径光学系统,它全部采用球面透镜。分析了光学系统的设计难点及相关光学系统结构型式的特点。最终采用了反摄远型光学系统的结构型式,该光学系统的视场为100°,F数为1.5,焦距为5 mm,光谱范围为0.84～0.97μm。光学系统的传递函数全视场大于0.65(@77 lp/mm),相对畸变小于15%,像面相对照度不均匀性小于10%。由此可见,该光学系统的成像质量满足指标要求,并且具有相对畸变较小及各视场相对照度均匀等特点。
An optical system with large field of view and small F number which was used for the near infrared re- mote sensing was designed. Its surfaces were spherical. The difficulties of the design and the characteristics of the candidates were analyzed. A reverse telephoto optical system was designed of which the field of view was 100°, F number was 1.5, focal length was 5 ram, and the spectral range was from 0.84 μm to 0. 97 μm. The MTF of the whole field of view was bigger than O. 65 （@ 77 lp/mm） , relative distortion was smaller than 15% , and the relative illumination uniformity was smaller than 10%. The image quality meets the requirements, and it has the character- istics of small relative distortion and uniformed image illumination and etc.
出处
《红外与激光工程》
EI
CSCD
北大核心
2013年第S01期107-110,共4页
Infrared and Laser Engineering
基金
北京空间机电研究所自主研发课题
关键词
遥感
光学系统设计
大视场大相对孔径
反摄远型
remote sensing
optical system design
wide angle and large relative aperture
reverse telephoto
作者简介
作者简介：姚罡（1986-），男，工程师，研究方向为空间遥感相机光学系统设计。Emai：elitenb@gmail．com.
