OPTOELECTRONIC PASSIVE RANGE FINDER Russian patent published in 2020 - IPC G01C3/08 G01S11/12 

FIELD: optoelectronic equipment.

SUBSTANCE: invention relates to the field of optoelectronic equipment and concerns an optoelectronic passive range finder. Range finder includes two channels, the first of which is a viewing channel and contains a short-focus lens and a matrix photodetector conjugated with the ocular channel display. Second channel is a rangefinder and includes a fragment of a long-focus lens, an entrance pupil of which is limited by a hole of the diaphragm shifted from the optical axis to the edge of the entrance pupil of the long-focus lens. Plane of the photodetector of the range-finding channel has an inclination relative to the optical axis of the long-focus lens. Optical axis of the viewing channel is located between the hole of the shifted diaphragm and the optical axis of the long-focus lens of the range-finding channel.

EFFECT: technical result consists in reduction of overall dimensions and weight with error of passive range measurement of not worse than 1÷1_5 % of measured range at main ranges of accurate firing.

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