LASER OPTICAL SIGNAL DETECTOR Russian patent published in 2024 - IPC G01S17/00 

FIELD: measurement.

SUBSTANCE: invention relates to laser location equipment, safety systems and can be used for remote detection and measurement of coordinates of optical and optoelectronic devices. Laser detector of optical objects comprises two pulsed semiconductor lasers, controlled pulse generator, series-connected optical receiving lens, avalanche photodiode (APD), first photosignal amplifier, automatic gain control (AGC) circuit based on noise signals, controlled displacement source APD, time interval meter connected to its supply input, audio module, adder. At that, laser diagrams of the first PCG1 and the second PCG2 are aligned along one line in one plane with partial overlapping of diagrams, in front of the receiving lens there is a selective light filter, in front of the sensitive area of the APD there is an optical mask with an antireflection and polarization zone. Laser detector of optical objects further comprises a light interference source, a switched-on power supply, a second photo signal amplifier, first and second signal selectors, a backlight LED, aligned by its diagram with an antireflection zone of the optical mask, a delay line, a signal switch, generators F1 and F2, a second adder, an "AND" circuit, a third adder, a mode switch.

EFFECT: high efficiency of detecting optical and optoelectronic devices in conditions of high background illumination, high accuracy of determining the position of an object and improved operational characteristics.

4 cl, 2 dwg