摘要
本发明提供的变焦透镜系统有一个杂光光阑,用它限制在不同条件下产生的杂光。当变焦时,移动杂光光阑,不会引起光强不足,杂光光阑的移动与透镜组移动无关。
The zoom lens system provided by this invention has a flare stop,by which thestray light produced in different condition can be limited.When the focus is chang-ed,the moval of the flare stop will not give rise to the shortage of luminosity.The moval of flare stop is independent of the moval of lens group.
出处
《光学技术》
CAS
CSCD
1989年第1期34-37,共4页
Optical Technique
