【摘要】：紫外(UV)波段是靶場光電測量的重要方式,但紫外波段目標(biāo)信號(hào)弱,可選取的光學(xué)材料很少,這都為高分辨率紫外觀測帶來了困難。設(shè)計(jì)的用于靶場的大相對(duì)孔徑長焦距紫外望遠(yuǎn)系統(tǒng)解決了上述問題,利用折反系統(tǒng)與二次成像的方法獲得F數(shù)2、焦長400mm、視場1°、波段范圍250~400nm的紫外光學(xué)系統(tǒng)。經(jīng)過光學(xué)軟件分析,望遠(yuǎn)系統(tǒng)各視場奈奎斯特頻率(38lp/mm)調(diào)制傳遞函數(shù)(MTF)分別高于0.7�？紤]到外場環(huán)境的適應(yīng)性,進(jìn)一步考察了望遠(yuǎn)系統(tǒng)在-40℃~60℃環(huán)境下的調(diào)焦量以及成像質(zhì)量,分析結(jié)果表明,各溫度下調(diào)焦后的奈奎斯特頻率MTF均優(yōu)于0.5,設(shè)計(jì)結(jié)果滿足靶場設(shè)計(jì)指標(biāo)與實(shí)際應(yīng)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 擄, 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，

本文編號(hào)：2173461