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本专利提供一种热成像仪,它包括一个低温致冷探测器元件列阵和一个扫描部件,其光学系统的视场是由一个场阑(2)限定的。场阑的一部分上有一个折反射区(6),由于该折反射区允许探测器列阵“看”它自己,所以该折反射
This patent provides a thermal imager comprising an array of cryogenically cooled detector elements and a scanning element whose field of view of the optical system is defined by a field stop (2). Part of the field diaphragm has a catadioptric zone (6). Since the catadioptric field allows the detector array to “see” itself, the catadioptric