SURVEILLANCE-SIGHTING DEVICE WITH COMBINED OPTICAL AXES OF INPUT PUPILS OF WORKING CHANNELS AND WITH BUILT-IN LASER RANGE FINDER Russian patent published in 2019 - IPC G02B23/12 F41G3/06 

FIELD: instrument engineering.

SUBSTANCE: device can be used in optoelectronic devices of fire control systems of armored vehicles. Device comprises head part consisting of protective glass and optical element with reflection for vertical guidance, visual, television, thermal-imaging channels and a receiving channel of a laser range finder, optical axes of input pupils of which are combined into one optical axis with possibility of simultaneous operation of all four channels by means of three dichroic elements. First dichroic element reflects visible and short-wave part of near infrared radiation and transmits long-wave part of near infrared radiation and thermal range of infrared radiation, second is made in form of mirror plane of semi-pentaprism BU-45° an erecting system of the visual channel and reflects the visible range and transmits the short-wave portion of the near infrared radiation, third dichroic element reflects long-wave part of near infrared radiation and transmits thermal range of infrared radiation. Optical axis of the range finder radiator is placed under the reflective surface of the vertical guidance element.

EFFECT: provision of night observation without active illumination, simultaneous operation of all channels without mechanical switching and simplification of the optical channel of the radiating channel.

1 cl, 3 dwg, 6 tbl