光电工程
光電工程
광전공정
OPTO-ELECTRONIC ENGINEERING
2014年
10期
42-48
,共7页
赵昭%王劲松%高铎瑞%安志勇
趙昭%王勁鬆%高鐸瑞%安誌勇
조소%왕경송%고탁서%안지용
光学设计%变焦距光学系统%声光可调谐滤波器%光谱相机%红外光学系统
光學設計%變焦距光學繫統%聲光可調諧濾波器%光譜相機%紅外光學繫統
광학설계%변초거광학계통%성광가조해려파기%광보상궤%홍외광학계통
optical design%zoom optical system%acousto-optic tunable filter%spectrum camera%infrared optical system
设计了基于AOTF器件的中波红外光谱相机前置变焦系统,针对AOTF器件和探测器的特性,系统采用折/衍射混合设计,用6片透镜即实现了25~300 mm连续12×变焦,并用ZEMAX软件对则汇集结果进行优化和像质评价。结果表明,该光学系统各个波段上在空间频率14 lp/mm处调制传递函数(MTF)值接近衍射极限,能量集中度大于90%。可用于大多情况下中红外光谱成像分析以及中红外的目标探测及识别。
設計瞭基于AOTF器件的中波紅外光譜相機前置變焦繫統,針對AOTF器件和探測器的特性,繫統採用摺/衍射混閤設計,用6片透鏡即實現瞭25~300 mm連續12×變焦,併用ZEMAX軟件對則彙集結果進行優化和像質評價。結果錶明,該光學繫統各箇波段上在空間頻率14 lp/mm處調製傳遞函數(MTF)值接近衍射極限,能量集中度大于90%。可用于大多情況下中紅外光譜成像分析以及中紅外的目標探測及識彆。
설계료기우AOTF기건적중파홍외광보상궤전치변초계통,침대AOTF기건화탐측기적특성,계통채용절/연사혼합설계,용6편투경즉실현료25~300 mm련속12×변초,병용ZEMAX연건대칙회집결과진행우화화상질평개。결과표명,해광학계통각개파단상재공간빈솔14 lp/mm처조제전체함수(MTF)치접근연사겁한,능량집중도대우90%。가용우대다정황하중홍외광보성상분석이급중홍외적목표탐측급식별。
Based on performance and application characteristic of acousto-optic tunable filter (AOTF) and the detector, a fore zoom optical system for AOTF spectra camera is designed which works on medium wave. The optical system adopts hybrid diffractive-refractive model and six lens to achieve a 12× continuous zoom configuration and ZEMAX software is used to optimize the optical system and assess the image quality of the system. The results show that the Modulation Transfer Function (MTF) of the system approaches to diffraction limit across the whole brand at spatial frequency16 lp/mm, encircled energy is greater than 90%. It is demonstrated that the system can apply in the field of infrared spectral imaging analysis and infrared target detection and recognition.