摘要
对内调焦望远物镜进行设计,利用二元透镜独特的色散特性,在提高成像质量的同时对传统结构进行简化。选取合适的初始结构,通过CODE V软件对物镜进行设计、优化及像质分析,得到成像质量颇佳的系统。在此基础上,对系统进行了调焦及优化,实现了对1.5m到无穷远物距在分划板上清晰成像的目的。在所有变焦范围内,系统各视场在50lp/mm处的MTF值均大于0.4,且各视场的畸变均小于0.5%。
It is designed for internal focusing telescope objective,using the unique dispersion characteristic of binary optics lens to improving the imaging quality at the same time to simplify the structure.Choosing an appropriate initial structure,using CODE V software,the objective is designed,optimized and analyzed.A fine image quality system is obtained.On this basic,the system is focused and optimized.The goal is achieved that object distance from 1.5mto infinity is imaging clear in the reticle.The MTF value of the system in all zooms is higher than0.4at 50lp/mm spatial frequency and the distortion is smaller than 0.5%.
出处
《光学仪器》
2015年第1期31-34,38,共5页
Optical Instruments
关键词
二元光学透镜
望远物镜
内调焦
binary optics lens
telescope objective
internal focusing
