结构型式对折射式光学系统二级光谱的影响  

The structure effect on the secondary spectrum of long focal refractive optical system

作　　者：刘琳[1,2] 

机构地区：[1]苏州大学江苏省现代光学技术重点实验室,苏州215006 [2]苏州大学物理科学与技术学院光电系,苏州215006

出　　处：《激光杂志》2009年第4期28-29,共2页Laser Journal

摘　　要：二级光谱是制约长焦距折射式光学系统成像质量提高的一个重要因素。在使用普通玻璃的情况下,选用不同的结构型式对折射式光学系统的二级光谱数量是有一定影响的。本文着重分析比较了双胶合、远距、匹兹伐结构等折射式系统的二级光谱,给出了在焦距、相对孔径、视场角相同并且选用相同玻璃条件下三种不同结构的设计实例,设计结果表明三种结构的二级光谱与理论分析是一致的。The secondary spectrum is an important factor which constrain the improvement of image quality in long focal refractive optical system. Under the condition of using common glass, the quantity of the secondary spectrmn varies as the structure form varies from one to another. In this paper, the secondary spectrum of several typical structure form is analyzed and compared. At last, some practical optical design examples are given to support the conclusion of comparison result mentioned above.

关 键 词：二级光谱 折射式系统 光学设计 

分 类 号：TH74[机械工程—光学工程]