RECEIVING CHANNEL OF THE LASER RANGEFINDER Russian patent published in 2021 - IPC G01C3/08 G01S17/08 G01S7/481 

FIELD: laser technology.

SUBSTANCE: invention relates to the field of laser technology and concerns the receiving channel of a laser rangefinder. The receiving channel contains a receiving lens and two photosensitive elements with amplifiers, at the outputs of which temporary signal fixation schemes are introduced. The photosensitive elements are located at the minimum possible distance from each other, and two inclined plane-parallel optical plates are inserted in front of them. The plate closest to the photosensitive elements is located perpendicular to the plane containing the axes of the photosensitive elements and is inclined to them by an angle θ. On its surface, opposite to the photosensitive elements, a dichroic coating is applied, reflecting the received radiation with a working wavelength. The second plate, installed closer to the receiving lens, is tilted at an angle of minus θ.

EFFECT: ensuring high accuracy of temporary fixation of the received signal in a wide dynamic range with minimal measurement time and without increasing the dimensions of the equipment.

3 cl, 3 dwg