红外与激光工程
紅外與激光工程
홍외여격광공정
INFRARED AND LASER ENGINEERING
2013年
10期
2732-2736
,共5页
王孟军%赵翠玲%韩邦杰%耿亚光%马萄
王孟軍%趙翠玲%韓邦傑%耿亞光%馬萄
왕맹군%조취령%한방걸%경아광%마도
双波段%红外%谐衍射%加工
雙波段%紅外%諧衍射%加工
쌍파단%홍외%해연사%가공
dual band%infrared%harmonic diffraction%processing
随着精确制导技术的快速发展,对两个波段的辐射同时进行探测已显得非常重要,对应的光学系统及其设计需求空前增长。文中根据谐衍射透镜的消色差、消热差特性,在各个较低衍射级次上的共焦以及极高衍射效率的特性,在现有金刚石切削加工能力的条件下应用CODEV光学设计软件设计了适用于-45~+71益的共轴双波段红外光学系统,该系统在全温度范围内无需调焦其调制传递函数全部接近衍射极限,光学系统无渐晕,并且达到100%冷光阑效率。该红外双波段光学系统结构紧凑、片数少、透射比高,对于提高导引头的探测精度、识别能力、打击精度有质的飞跃。
隨著精確製導技術的快速髮展,對兩箇波段的輻射同時進行探測已顯得非常重要,對應的光學繫統及其設計需求空前增長。文中根據諧衍射透鏡的消色差、消熱差特性,在各箇較低衍射級次上的共焦以及極高衍射效率的特性,在現有金剛石切削加工能力的條件下應用CODEV光學設計軟件設計瞭適用于-45~+71益的共軸雙波段紅外光學繫統,該繫統在全溫度範圍內無需調焦其調製傳遞函數全部接近衍射極限,光學繫統無漸暈,併且達到100%冷光闌效率。該紅外雙波段光學繫統結構緊湊、片數少、透射比高,對于提高導引頭的探測精度、識彆能力、打擊精度有質的飛躍。
수착정학제도기술적쾌속발전,대량개파단적복사동시진행탐측이현득비상중요,대응적광학계통급기설계수구공전증장。문중근거해연사투경적소색차、소열차특성,재각개교저연사급차상적공초이급겁고연사효솔적특성,재현유금강석절삭가공능력적조건하응용CODEV광학설계연건설계료괄용우-45~+71익적공축쌍파단홍외광학계통,해계통재전온도범위내무수조초기조제전체함수전부접근연사겁한,광학계통무점훈,병차체도100%랭광란효솔。해홍외쌍파단광학계통결구긴주、편수소、투사비고,대우제고도인두적탐측정도、식별능력、타격정도유질적비약。
With the rapid development of precision guidance technology, simultaneous detection of both bands has become very important, the demand of the corresponding optical system and its design increase rapidly. According to the harmonic diffraction element with the characteristic of achromatism, athermalization, same focus on each low diffractive level and high diffractive efficiency, using the CODEV optical design program, a coaxial dual-band IR optical system was designed that worked at -45~+71℃ in the existing processing conditions of diamond cutting. The modulation transfer function (MTF) approached to the diffraction limit in the whole range of temperature and no need to focus, there was no vignetting in optical system and the efficiency of cold shield reached 100%. The dual band infrared optical system has the advantages of compact structure, fewer elements and high transmittance, it is a qualitative leap for improving detection accuracy and recognition ability of the seeker.