LASER RANGE FINDER Russian patent published in 2009 - IPC G01C3/08 

FIELD: instrument making.

SUBSTANCE: proposed laser range finder comprises receiver and transmitter including the lens and two laser radiators with their output beams are polarised and aligned with the help of optical adder. The latter represents birefringent plane-parallel plate. Aforesaid laser radiators are arranged on one of the plate faces side so that their optical axes be parallel, while the laser radiation polarisation planes be mutually perpendicular. Thickness of previously mentioned birefringent plane-parallel plate is determined from the formula h=α/tgβ, where h is the plate thickness, α is the distance between laser radiators axes, β is the angle of reflection of extraordinary ray. Every laser radiator represents a solid-state laser diode with radiating side representing a p-n junction with cylindrical lens connected in parallel therewith.

EFFECT: minimised sizes in using two laser radiators.

3 cl, 3 dwg