长春理工大学学报（自然科学版）
長春理工大學學報（自然科學版）
장춘리공대학학보（자연과학판）
JOURNAL OF CHANGCHUN UNIVERSITY OF SCIENCE AND TECHNOLOGY(NATURAL SCIENCE EDITION)
2014年
1期
10-13
,共4页
两档变焦%初始结构%二次成像%红外光学系统
兩檔變焦%初始結構%二次成像%紅外光學繫統
량당변초%초시결구%이차성상%홍외광학계통
dual field-of-view%initial structure%re-imaging optics%infrared optical system
介绍了红外两档变焦光学系统的变焦理论和二次成像理论。分析了将后固定组与二次成像组相结合结构形式的高斯光学理论。这种结构减少了一个组元，结构简单，并降低了体积重量和成本。最后根据上述理论，设计了基于长波致冷型探测器的两档变焦红外光学系统，可实现320mm/80mm两档变焦，工作波段7.7～9.5μm，F数为2，满足100%冷光阑效率。评价结果表明，该系统像质优良，满足实际需求，证实了该种方法也具有一定的可行性。
介紹瞭紅外兩檔變焦光學繫統的變焦理論和二次成像理論。分析瞭將後固定組與二次成像組相結閤結構形式的高斯光學理論。這種結構減少瞭一箇組元，結構簡單，併降低瞭體積重量和成本。最後根據上述理論，設計瞭基于長波緻冷型探測器的兩檔變焦紅外光學繫統，可實現320mm/80mm兩檔變焦，工作波段7.7～9.5μm，F數為2，滿足100%冷光闌效率。評價結果錶明，該繫統像質優良，滿足實際需求，證實瞭該種方法也具有一定的可行性。
개소료홍외량당변초광학계통적변초이론화이차성상이론。분석료장후고정조여이차성상조상결합결구형식적고사광학이론。저충결구감소료일개조원，결구간단，병강저료체적중량화성본。최후근거상술이론，설계료기우장파치랭형탐측기적량당변초홍외광학계통，가실현320mm/80mm량당변초，공작파단7.7～9.5μm，F수위2，만족100%랭광란효솔。평개결과표명，해계통상질우량，만족실제수구，증실료해충방법야구유일정적가행성。
The zoom lens theory and the re-imaging theory of dual field-of-view infrared system are presented. The theory of how to combined the back fixed groups and the re-imaging groups together is analyzed in Gaussian imaging principle. This structure has been reduced one groups, which can make it more compact, and with a lower volume, weight, and cost. Finally, a dual field-of-view infrared system used cooled detector is designed according to the above theory. This system can realize 320mm/ 80mm step zoom at the spectrum region 7.7~9.5μm, and obtain the cold shield efficiency of 100% . The F number is 2. The result shows that the design has a desirable image quality and can meet the requirements, and confirmed the method has a certain feasibility.
