LIGHTWEIGHT LASER DESIGNATOR RANGER FLIR OPTICS

摘要

A Midwave FLIR imaging optical apparatus (100) has both a narrow and wide field of view. The imaging optical apparatus (100) has a See Spot mode of operation, where a laser designator spot image is superimposed on the FLIR image in the narrow field of view. A laser rangefinder (108) receiver path is also provided. A shared aperture (112) collects incident radiation (110), which after manipulation by a plurality of optically significant surfaces (116), projects radiation to a detector (118). The imaging optical system (100) is lightweight and compact and efficiently transmits FLIR energy and a narrow band of laser energy so that a signal due to a source outside the pass bands of interest (including solar energy) will not adversely effect operation of the imaging optical apparatus (100).