SURVEILLANCE DEVICE - SIGHT WITH BUILT-IN PULSE LASER DISTANCE FINDER Russian patent published in 2014 - IPC G02B23/12 F41G3/06 

FIELD: weapons and ammunition.

SUBSTANCE: device comprises a head part consisting of protective glasses and two prisms-cubes, two vertically oriented channels: single optical and multiple optoelectronic, and the channel of pulsed laser distance finder which has emitting and receiving devices. The optical path of the receiving device comprises a lens and the collecting lens of the single channel, matching optical system and dichroic plate mounted between the collecting lens and the inversion system of the single channel transmitting the visible spectral range and reflecting wavelength of 1.54 microns. The emitting device is placed in close proximity to the multiple optoelectronic channel. The equivalent focal distance of the optical path of the receiving channel of the pulsed laser distance finder F'_e is connected to the focal distance of the lens of the single optical channel F'_l with the dependence $$F{\text{'}}_e=(\mathrm{0,4}÷\mathrm{0,7})F{\text{'}}_l.$$ Projection of laser emitting through the head prism-cube of the multiple optoelectronic channel is provided by its partial vignetting.

EFFECT: improved accuracy of measuring distance from two channels of surveillance-aiming with the minimal size of the head part of the device and a wide range of pointing angles.

2 dwg, 2 tbl