中国光学
中國光學
중국광학
CHINESE JOURNAL OF OPTICS
2014年
2期
315-319
,共5页
小型化%变焦距%光学系统设计%传递函数
小型化%變焦距%光學繫統設計%傳遞函數
소형화%변초거%광학계통설계%전체함수
miniature%zoom lens%optical system design%Modulation Transfer Function ( MTF)
为了完成飞行器导引头目标识别与探测任务,以短焦距、大视场进行搜索并确认目标,以长焦距、小视场进行高精度目标识别。通过选择正组补偿的机械补偿法,采用3种普通光学材料,在长焦距位置,将前固定组、变倍组的组合设计为远摄型,使得系统结构紧凑,满足导引头小型化的要求。利用 CODE V 光学设计软件,优化设计了焦距为30~150 mm,视场角为12.90°×10.25°~2.59°×2.07°,筒长仅为174 mm的变焦距光学系统,得到成像质量优良的设计结果。各焦距、全视场平均传递函数值在50 lp/mm时为0.695,测试结果为0.562,满足系统的性能要求。
為瞭完成飛行器導引頭目標識彆與探測任務,以短焦距、大視場進行搜索併確認目標,以長焦距、小視場進行高精度目標識彆。通過選擇正組補償的機械補償法,採用3種普通光學材料,在長焦距位置,將前固定組、變倍組的組閤設計為遠攝型,使得繫統結構緊湊,滿足導引頭小型化的要求。利用 CODE V 光學設計軟件,優化設計瞭焦距為30~150 mm,視場角為12.90°×10.25°~2.59°×2.07°,筒長僅為174 mm的變焦距光學繫統,得到成像質量優良的設計結果。各焦距、全視場平均傳遞函數值在50 lp/mm時為0.695,測試結果為0.562,滿足繫統的性能要求。
위료완성비행기도인두목표식별여탐측임무,이단초거、대시장진행수색병학인목표,이장초거、소시장진행고정도목표식별。통과선택정조보상적궤계보상법,채용3충보통광학재료,재장초거위치,장전고정조、변배조적조합설계위원섭형,사득계통결구긴주,만족도인두소형화적요구。이용 CODE V 광학설계연건,우화설계료초거위30~150 mm,시장각위12.90°×10.25°~2.59°×2.07°,통장부위174 mm적변초거광학계통,득도성상질량우량적설계결과。각초거、전시장평균전체함수치재50 lp/mm시위0.695,측시결과위0.562,만족계통적성능요구。
In order to complete recognition and detection tasks of the aircraft seeker , a high precision , minia-turization of the zoom optical system is designed .Targets are searched and identified at short focal length , wide field , and recognized at long focal length , narrow field .The mechanical compensation method is selected using three kinds of common optical materials .At the location of the long focal length , combinatorial design of the front group and the zoom group can make the system compact , and meet seeker miniaturization require-ments.The zoom optical system with optimization focal length about 12.90°×10.25°~2.59°×2.07°and lene tube length only 174 mm is designed by using the CODEⅤ optical design software .For the each focal length and each field of view , the average MTF is 0.695, and tested result is 0.562 at 50 lp/mm, which can meet performance requirements of the system .