LASER PULSE RECEIVER Russian patent published in 2019 - IPC G01J1/04 G02B26/02 H01L31/232 

FIELD: physics.

SUBSTANCE: invention relates to receiving optical radiation and a laser pulse receiver. Receiver includes a photosensitive element, a signal processing circuit and an optical gate mounted in front of the photosensitive element. Optical gate is made in the form of a shutter with two working positions. Device incorporates a shutter drive incorporating a torsion spring fixed on the body and coaxially connected to the rocker arm, one arm of which is pulled to the body by tensioning with force determined by the specified speed of the curtain drive, and a curtain is mounted on the free arm of the rocker arm. Ratio of arm of rocker arm is selected so that when changing length of brace by value Δc, the shutter is moved to a predetermined distance between the initial and operating positions. Stretching is current-conducting thread to ends of which source of control electric signal is supplied, at supply of which temperature expansion of stretch from its heating by flowing electric current is value Δc.

EFFECT: technical result consists in ensuring operability of device for high-energy input signals and maximum sensitivity for small signals with minimum dimensions of device and its maximum speed and reliability.

3 cl, 1 dwg