Small-scale infrared surround scan system with image motion blur compensation based on multisegment optical wedges

Abstract

We study an infrared surround scan system based on a photodetector array with an entrance pupil of a small diameter with no specific requirements for achieving versatility and a high dynamic performance. A cooled midinfrared photodetector with an objective and a compensator for the tangential motion blur of an image are housed within a rotating unit. Command and data exchange are ensured using a rotating communication device mounted on a rotation axis of the moving unit. Multisegment assemblies of optical wedges are used instead of single wedges in the compensator for the tangential motion blur of the image. We demonstrate that this engineering design makes it possible to increase the signal integration time by several times compared with a basic design with single-segment wedges.