OPTICAL SYSTEM AND INFRARED CAMERA WITH A NON-UNIFORMITY CORRECTION SHUTTER INTEGRATED WITHIN THE OPTICAL SYSTEM

摘要

Optical systems and respective cameras are provided, which have a NUC (non-uniformity correction) -shutter incorporated internally in the optical system, between its optical elements. The NUC-shutter is configured to be temporarily inserted between two of the optical elements to enable performing NUC of a detector array in the camera. Camera designs, in particular infrared camera designs, achieve wide fields of view and very low distortions by exploiting the possibility to minimize the back focal length of the optical system which is enabled by the configuration of the NUC-shutter.