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2. 发明公开

EP3237860A1 SYSTEME D'IMAGERIE GRAND CHAMP INFRAROUGE 有权
公开(公告)号：EP3237860A1
公开(公告)日：2017-11-01
申请号：EP15816180.2
申请日：2015-12-21
申请人： Office National d'Etudes et de Recherches Aérospatiales (ONERA)
发明人： DRUART, Guillaume , GRULOIS, Tatiana , GUERINEAU, Nicolas , DESCHAMPS, Joël
IPC分类号： G01J5/08 , G02B13/14
CPC分类号： G02B13/14 , G01J1/4228 , G02B5/208 , H04N5/23238 , H04N5/33
摘要： A wide-field imaging system (1) comprising a vacuum chamber (13), a cooled dark room (3), an infrared detector (2) positioned inside the cooled dark room (3) and a device for optically conjugating the field rays with the infrared detector (2), the optical conjugation device comprising at least one cold converging lens (4) positioned inside said cooled dark room (3) and at least one warm converging or diverging lens (8) positioned outside said cooled dark room (3), the warm lens (8) forming a virtual intermediate image located either upstream from the warm lens (8), or downstream from the cold lens (4), and the shape of the warm lens (8) being such that the absolute value of the difference between the radii of curvature (Rg) and (Rd) of the two diopters of the warm lens (8) is less than or equal to e(1-1/n), e and n being respectively the thickness and the optical index of the warm lens (8).
摘要翻译：一种包括真空室（13），冷却暗室（3），位于冷却暗室（3）内部的红外检测器（2）和用于将场光线与光场共轭的装置的宽场成像系统所述红外探测器（2），所述光学共轭装置包括位于所述冷却的暗室（3）内部的至少一个冷聚光透镜（4）和位于所述冷却的暗室（3）外部的至少一个温聚光或发散透镜（8）），温透镜（8）形成位于温透镜（8）上游或冷透镜（4）下游的虚拟中间图像，温透镜（8）的形状使得绝对值（8）的两个屈光度的曲率半径（Rg）和（Rd）之差小于或等于e（1-1 / n），e和n分别是厚度和温透镜（8）的光学指数。

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