采用480×6元长波红外探测器的搜索光学系统设计

摘要

针对冷光栏F数为1.27的480×6元长波制冷型红外探测器,设计了焦距325 mm、F数达1.35、视场为±1.05°的用于红外警戒或搜索系统的6片式光学系统,该系统光学透过率为76％,冷屏效率100％.%A 6-piece lens used for infrared warning or searching system was designed, based on the 480 × 6 long wavelength infrared (LWIR) detector with the F number of 1. 27. The designed lens has 325mm focal length, 1. 35 F number and ±1. 05°FOV . The transmittance is 76% and the cold shield efficiency is 100%.