摘要
设计了一种大口径内扫描三档变焦光学系统。系统工作波段为7.7～10.3μm,焦距为65mm、130mm、390mm,变倍比为6∶1,系统F数为1.67,最大口径为240mm。系统具有较好的成像质量,且对冷反射和扫描温差进行了优化控制,这种变焦光学系统具有大口径、长焦距,能够用于对远距离小目标跟踪的特点,在高性能红外热像仪中得到较好的应用。
In this paper, a large aperture scanning infrared zoom system is designed. The focal length of this zoom system at 7. 7-10. 3μm is 65 mm, 130 mm and 390 mm with a zoom ranger of 6 ： 1, the F-number is 1.67, and the large aperture is 240 mm. The zoom system has good image quality. And the narcissus and scanning temperature are introduced. So it can be used in the high thermal imager widely.
出处
《光学与光电技术》
2013年第3期86-89,共4页
Optics & Optoelectronic Technology
