Patent US 4,773,752

A stabilized sighting apparatus comprising a infrared camera sensitive to the thermal infrared rotatably mounted for rotation about an elevation axis on an assembly rotatable on a platform about an azimuth axis. The camera is provided with an inertial system for stabilization about the two axes. The apparatus comprises an optical viewfinder having an aiming mirror mounted on the assembly and rotatable about an axis parallel with the elevation axis by a recopying device and an optical offset means which directs along the azimuth axis, towards the platform, the light beam reflected by the aiming mirror. The infrared camera is traversed by the azimuth axis and the larger part thereof is on the side of the azimuth axis opposed to the side where the mirror is located.