摘要
基于高斯光学理论准确选择高斯解,并采用机械补偿机构,实现了连续变焦.设计了一种焦距为20m～200mm可见光变焦距电视光学系统,视场角为22.62°～2.3°.系统的极限分辨率达59.5lp/mm.经过像差校正后,60lp/mm处的MTF大于0.4.
The imaging TV system is usually applied to automatically follow and measure the flying targets,because of its convenience to our observation as well as the digital and processing of video information. It is obvious that the TV lens with one kind of focal length can not meet the needs of searching, tracking and measuring. A mechanical-compensated zoom lens is adopted, Gaussian optics for the zoom system is described in order to choose the proper Gaussian solution,avoid coming into the no solution range,and the design process＇ s blindness is decreased. An example of visible video zoom system was given with configuration f＇=20-200mm,w=22.62°-42.3°,and fit for 1/2 inch CCD.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2008年第9期1797-1799,共3页
Acta Photonica Sinica
关键词
电视成像系统
变焦距
高斯光学
像差
Imagine TV system
Zoom lens
Gaussian optics
Aberration
作者简介
TIAN Hai-xia was born in 1982. She graduated from Luoyang Normal College with a Bachelor＇s degree in 2005, and now she is working towards the master degree in Xi＇an Institute of Opries and Precision Mechanics. Her main research focuses on optical system design.Tel：029-88887679 Email：eitor@163．com
