摘要
提出一种大相对孔径长波连续变焦红外光学系统的设计方法,利用变焦原理和光学设计软件得到系统结构及其参数。该光学系统在变焦过程中相对孔径可变,F数最小可达0.85。系统主要光学参数F/#为0.85～1,变倍比为4.5∶1,工作波长为8～12μm,采用384×288元非制冷焦平面探测器。具有分辨率高、像质好、能量利用率高、变焦轨迹平滑等特点,满足工程设计要求。
A long-wavelength low F/# continuously zooming infrared optical system is introduced. Using zooming prin- ciple and optical design software, the optical system＇ s structure and parameters are obtained. The relative aperture is variant during the zoom process, F/# is 0. 85 - 1, zoom ratio is 4. 5 ： 1, operating wavelength is 8 - 12 μm, and a 384 × 288 uncooled FPA detector is used. The system has high resolution, excellent images quality and smooth zoom locus. The design meets the requirements of the practical engineering.
出处
《激光与红外》
CAS
CSCD
北大核心
2013年第7期757-760,共4页
Laser & Infrared
