应用光学, 2013, 34 (2): 203, 网络出版: 2013-05-22
一种高分辨率电视制导连续变焦光学系统
One kind of high resolution TV guided optical zoom system
摘要
依据高分辨率电视图像导引头瞬时视场和作用距离的要求,结合选定相机的光敏面尺寸等,计算并确定了光学系统的焦距范围,根据光学系统分辨率以及结构尺寸等要求,确定了光学系统的F数,选择机械补偿法、负组补偿的变焦结构,给出焦距分配过程,最后,给出了焦距为40 mm~152 mm、F数为3.5的连续变焦光学系统的设计结果。设计结果表明:在整个变焦过程中,光学系统的传递函数值在106 lp/mm处达到或接近0.4,像面稳定,像质良好。
Abstract
According to the technical requirements of the high resolution TV seeker, the system's optics parameters were calculated and the focusing range was optimized. F number of the optical system was defined. An optical zoom system with focal length of 40 mm ~ 152 mm and the F number of 3.5 was designed. The design results show that throughout the zoom process the values of the MTF at 106 lp/mm reach or close to 0.4, the image plane is stable and the image quality is good.
宋岩峰, 孙卫平, 王国力. 一种高分辨率电视制导连续变焦光学系统[J]. 应用光学, 2013, 34(2): 203. SONG Yan-feng, SUN Wei-ping, WANG Guo-li. One kind of high resolution TV guided optical zoom system[J]. Journal of Applied Optics, 2013, 34(2): 203.