摘要
基于切换式两档变焦光学装置,设计了一种焦距600mm/1 200mm可变,靶面尺寸10.4mm×7.6mm,工作波段400nm^700nm,通光口径为136.6 mm/170 mm,最大畸变小于0.2%,传递函数值在空间频率60lp/mm处不低于20%的光学系统,该系统经指标及像质测试、环境例行试验、实景成像试验的验证,系统各项技术指标均满足某军用测量设备的要求。
The switch-zoom optical system based on the switching device is designed. The focal length is 600/1 200, CCD target size is 10.4 mm×7.6 mm, the operating wavelength is 400 nm--700 nm, the clear aperture is 136.6 mm/170 mm, the maximum distortion is less than 0. 2%, the MTF of the system is more than 0. 2 at the spatial frequency 60 lp/mrn. It is proved that the main technical specifications meet the equipment requirements by image quality testing, environment routine testing, and real imaging testing.
出处
《光学与光电技术》
2013年第6期93-96,共4页
Optics & Optoelectronic Technology
关键词
长焦距
大靶面
两档变焦
光阑
变倍组
像质
long focal length
large target area
switch-zoom
optical stop
zoom group
image quality
