發(fā)布時間：2018-06-05 10:00

  本文選題：推帚式成像 + 離軸三反系統(tǒng)　； 參考：《浙江大學(xué)》2016年碩士論文

【摘要】：推帚成像方式是目前航空航天儀器中應(yīng)用十分廣泛的一種成像方式,它具有結(jié)構(gòu)簡單、積分時間長、易于實現(xiàn)中高分辨率成像等優(yōu)點。在成像方式確定之后,光學(xué)系統(tǒng)就成為決定儀器性能的重要因素。本文對推帚式成像光學(xué)系統(tǒng)的設(shè)計方案進(jìn)行探究,主要完成了以下幾項工作：(1)根據(jù)系統(tǒng)工作要求,論證分析了光學(xué)指標(biāo)與參數(shù),定性分析了全反射光學(xué)系統(tǒng)與折射光學(xué)系統(tǒng)的各種典型結(jié)構(gòu)型式的特性,在此基礎(chǔ)上,為本文的推帚式成像光學(xué)系統(tǒng)的設(shè)計方案做出了選擇；(2)推導(dǎo)了離軸三反系統(tǒng)初始結(jié)構(gòu)計算方法。在相同的光學(xué)設(shè)計指標(biāo)下,分別對離軸三反系統(tǒng)和雙高斯系統(tǒng)展開了設(shè)計,得到了F/4.8、F/2.4、F/1.6的多組設(shè)計結(jié)果,以“F/2.4, FOV=32°×1°"的離軸三反系統(tǒng)和“F/2.4,FOV=32°”的雙高斯系統(tǒng)為例,從公差分析、熱分析、雜散光分析、裝調(diào)分析幾個方面對設(shè)計結(jié)果進(jìn)行了全面的對比、分析與總結(jié),直觀展現(xiàn)了這兩種結(jié)構(gòu)型式光學(xué)系統(tǒng)的綜合性能及特點,為推帚式成像光學(xué)系統(tǒng)的設(shè)計選型提供了參考；(3)設(shè)計中大量應(yīng)用非球面,文中討論了非球面的檢驗方法,對透鏡補(bǔ)償法檢驗非球面的設(shè)計原理以及補(bǔ)償鏡初始結(jié)構(gòu)計算方法做了詳細(xì)推導(dǎo),以一組典型的離軸三反系統(tǒng)設(shè)計結(jié)果為例,采用無像差點法和補(bǔ)償法設(shè)計了主、次、三鏡的檢驗方案。
[Abstract]:Push broom imaging is a widely used imaging method in aerospace instruments at present. It has the advantages of simple structure, long integral time and easy to realize the middle and high resolution imaging. After the imaging mode is determined, the optical system becomes an important factor to determine the performance of the instrument. In this paper, the design scheme of the push-broom imaging optical system is studied. The following work is accomplished: 1) according to the system working requirements, the optical indexes and parameters are demonstrated and analyzed. The characteristics of various typical structures of total reflection optical system and refraction optical system are qualitatively analyzed. The method of calculating the initial structure of the off-axis three inverse system is derived for the design scheme of the push-broom imaging optical system in this paper. Under the same optical design index, the off-axis three counter system and the double Gao Si system are designed respectively, and the results of multiple design of F / 4.8 / F / 2.4 / F / 1.6 are obtained. Taking the off-axis triple inverse system with "F / 2.4, FOV=32 擄脳 1 擄" and the double Gao Si system with "F2.4 / 4 FOV32 擄" as examples, the tolerance analysis is made. The results of thermal analysis, stray light analysis and installation analysis are compared, analyzed and summarized, and the comprehensive properties and characteristics of the two types of optical systems are shown directly. A large number of aspherical surfaces are used in the design of push-broom imaging optical system. The test method of aspherical surface is discussed in this paper. The design principle of testing aspherical surface by lens compensation method and the calculation method of initial structure of compensating mirror are deduced in detail. Taking a group of typical off-axis three inverse system design results as examples, the principal and second parts are designed by using image free handicap method and compensation method. Three mirror inspection scheme.
【學(xué)位授予單位】：浙江大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：V241

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本文編號：1981589