公开(公告)号：EP2894503A4

公开(公告)日：2016-04-13

申请号：EP13836098

申请日：2013-09-03

申请人： NALUX CO LTD ,  FLIR SYSTEMS

发明人： FUJIMURA KAYOKO ,  IKEDA KATSUMOTO ,  SEKI DAISUKE

IPC分类号： G02B13/14

CPC分类号： G02B3/04 ,  G02B3/08 ,  G02B13/14

摘要： This infrared imaging optical system used for infrared rays comprises, from the object side to the image side, an aperture (101, 101A, 101B, 1101, 2101, 3101, 9101), a single lens (103, 103A, 103B, 1103, 2103, 3103, 9103) made of the synthetic resin, and an imaging element, the object side surface of the lens being convex to the object side in the paraxial area, wherein F-number of the system is 1.4 or smaller.