靶场紫外望远系统光学设计
发布时间：2018-08-09 08:09
【摘要】：紫外(UV)波段是靶场光电测量的重要方式,但紫外波段目标信号弱,可选取的光学材料很少,这都为高分辨率紫外观测带来了困难。设计的用于靶场的大相对孔径长焦距紫外望远系统解决了上述问题,利用折反系统与二次成像的方法获得F数2、焦长400mm、视场1°、波段范围250~400nm的紫外光学系统。经过光学软件分析,望远系统各视场奈奎斯特频率(38lp/mm)调制传递函数(MTF)分别高于0.7。考虑到外场环境的适应性,进一步考察了望远系统在-40℃~60℃环境下的调焦量以及成像质量,分析结果表明,各温度下调焦后的奈奎斯特频率MTF均优于0.5,设计结果满足靶场设计指标与实际应用需求。
[Abstract]:Ultraviolet (UV) band is an important method of photoelectric measurement in range, but the target signal of ultraviolet band is weak and the optical materials can be selected few, which brings difficulties for high resolution ultraviolet observation. The design of a large relative aperture and long focal length ultraviolet telescope system for shooting range solves the above problem. The UV optical system with F number 2, focal length 400 mm, field of view 1 掳, and band range 250~400nm is obtained by the method of refraction system and secondary imaging. Through the analysis of optical software, the Nyquist frequency (38lp/mm) modulation transfer function (MTF) of telescopic system is higher than 0.7. Considering the adaptability of the field environment, the focusing quantity and imaging quality of the telescopic system at -40 鈩，
本文编号：2173461
[Abstract]:Ultraviolet (UV) band is an important method of photoelectric measurement in range, but the target signal of ultraviolet band is weak and the optical materials can be selected few, which brings difficulties for high resolution ultraviolet observation. The design of a large relative aperture and long focal length ultraviolet telescope system for shooting range solves the above problem. The UV optical system with F number 2, focal length 400 mm, field of view 1 掳, and band range 250~400nm is obtained by the method of refraction system and secondary imaging. Through the analysis of optical software, the Nyquist frequency (38lp/mm) modulation transfer function (MTF) of telescopic system is higher than 0.7. Considering the adaptability of the field environment, the focusing quantity and imaging quality of the telescopic system at -40 鈩，
本文编号：2173461
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