红外与激光工程
紅外與激光工程
홍외여격광공정
INFRARED AND LASER ENGINEERING
2014年
10期
3329-3333
,共5页
鱼眼透镜%双波段%消热差%光学设计
魚眼透鏡%雙波段%消熱差%光學設計
어안투경%쌍파단%소열차%광학설계
fisheye lens%dual-band%athermalization%optical design
双波段鱼眼红外光学系统可以获取中波和长波两波段的图像信息,同时由于其大视场的特性,可以大大增加目标信息获取范围。根据光学系统的设计要求对光学系统进行了设计,全视场196°,4.4~5.4μm/7.8~8.8μm波段内清晰成像,考虑到冷光栏的制冷效应,F#严格与冷光栏匹配,达到100%的冷光栏效应。推导了大视场被动消热差公式,通过对玻璃材料的优化选择,达到了双波段消热差,所设计的光学系统结构相对简单,成像质量较好,系统各个波段在-40~60℃的工作温度下实现了消热差,满足使用需求。
雙波段魚眼紅外光學繫統可以穫取中波和長波兩波段的圖像信息,同時由于其大視場的特性,可以大大增加目標信息穫取範圍。根據光學繫統的設計要求對光學繫統進行瞭設計,全視場196°,4.4~5.4μm/7.8~8.8μm波段內清晰成像,攷慮到冷光欄的製冷效應,F#嚴格與冷光欄匹配,達到100%的冷光欄效應。推導瞭大視場被動消熱差公式,通過對玻璃材料的優化選擇,達到瞭雙波段消熱差,所設計的光學繫統結構相對簡單,成像質量較好,繫統各箇波段在-40~60℃的工作溫度下實現瞭消熱差,滿足使用需求。
쌍파단어안홍외광학계통가이획취중파화장파량파단적도상신식,동시유우기대시장적특성,가이대대증가목표신식획취범위。근거광학계통적설계요구대광학계통진행료설계,전시장196°,4.4~5.4μm/7.8~8.8μm파단내청석성상,고필도랭광란적제랭효응,F#엄격여랭광란필배,체도100%적랭광란효응。추도료대시장피동소열차공식,통과대파리재료적우화선택,체도료쌍파단소열차,소설계적광학계통결구상대간단,성상질량교호,계통각개파단재-40~60℃적공작온도하실현료소열차,만족사용수구。
The dual-band infrared optical system can track the band informantion stretch from mid-wave infrared to long-wave infrared, which can greatly improved the information acquisition. A dual-band infrared optical system based on the compact principle was designed, the optical system can imaging clearly continuous from 4.4-8.8μm/17.8-8.8μm, the F# strictly matched with cold light bar that the cold light bar effect reached 100%. While the system using the passive athermal methods to get rid of temperature compensation problem and finally realized the dual-band of athermalization. The result shows that: the design of the system structure is relatively simple, and can get stable good imaging quality in continuous bands from -40℃ to 60℃, satisfying the requirements of a standard infrared thermal imager.