-
公开(公告)号:EP2312287A1
公开(公告)日:2011-04-20
申请号:EP10186403.1
申请日:2010-10-04
Inventor: Oster, Dov , Singer, Michael , Koifman, Alina , Markovitz, Tuvy
CPC classification number: G01J5/06 , G01J5/061 , G01J5/08 , G01J5/0806 , G01J2005/0077 , G01J2005/065
Abstract: An infrared (IR) imaging system (200) is presented. The system comprises a cooling chamber (114) associated with a cooler generating a certain temperature condition inside the chamber. The cooling chamber has an optical window (116), and comprises thereinside an IR detector (112) and a cold shield (118) both thermally coupled to said cooler, and an imaging optical assembly (130) comprising one or more imaging lenses defining a certain fixed focus of the imaging assembly and being enclosed by the cold shield in between the detector and the optical window. The imaging optical assembly and the detector are therefore under the same cooling temperature thereby reducing thermal noise in the detected image.
Abstract translation: 提出了一种红外(IR)成像系统(200)。 该系统包括与冷却器相关联的冷却室(114),其在室内产生一定温度条件。 冷却室具有光学窗口(116),并且包括热耦合到所述冷却器的IR检测器(112)和冷屏蔽件(118),以及包括一个或多个成像透镜的成像光学组件(130),其限定 成像组件的某些固定焦点并被检测器和光学窗口之间的冷屏蔽包围。 因此,成像光学组件和检测器处于相同的冷却温度,从而降低检测图像中的热噪声。