COMBINED SURVEILLANCE DEVICE - SIGHT WITH BUILT-IN PULSE LASER RANGE FINDER Russian patent published in 2019 - IPC G02B23/12 F41G3/06 H04N5/33 

FIELD: weapons.

SUBSTANCE: device can be used in fire control system of armored vehicles. Instrument comprises two vertically arranged sighting and sighting channels, one of which has a receiving channel of a laser range finder, with their head parts, one of which contains a prism-cube, and a radiating channel of a laser range finder. One sighting channel is an optical channel of variable magnification, and the other is by multiple thermal imaging channel, head part of which contains reflecting mirror, and receiving channel of laser range finder is combined with optical channel of variable magnification, separator of visible and laser flows is installed in converging beam before collective lens of optical channel of variable magnification and is made in form of prism-cube. Focal distance F'_ol and rear focal length S'_{F '} objective lenses of variable gain channel are connected by ratio S'_{F '}= (0.65–0.8) F'_ol, observance of which makes it possible to build in the channel an erecting system, providing for change of magnification with invariable dimensions of the device.

EFFECT: technical result is expansion of operating spectral range with preservation of change of magnification during operation in visible range, as well as elimination of energy losses while preserving dimensions.

1 cl, 2 dwg