METHOD OF DELIVERING LASER RADIATION TO MOVING OBJECT AND APPARATUS THEREFOR Russian patent published in 2015 - IPC H04B10/00 

FIELD: physics, optics.

SUBSTANCE: group of inventions relates to laser location, laser communication and to systems for delivering laser radiation to a moving object. The method comprises transmitting, to a moving object, laser radiation pulses with wavelength λ to form a heat spot on the object; receiving radiation of the heat spot in spectral intervals in the infrared range comprising the wavelength λ; narrowing the width of the spectral intervals while receiving radiation of the heat spot such that spectral boundaries of the intervals get close to λ; maintaining the average brightness value of the image heat spot approximately unchanged while receiving radiation, wherein laser radiation reflected from the object while receiving radiation of the heat spot is selectively attenuated; correcting transmission of laser radiation pulses in the direction of the brightest point of the heat spot; the direction is determined from coordinates of the point with maximum brightness in the image of the heat spot which is obtained after delivering each laser radiation pulse to the object. An apparatus which implements the method includes a laser radiation source connected to a unit for controlling the direction of the laser beam, optically interfaced two-dimensional optical guidance system, telescope, beam splitter, retroreflector, selective laser radiation intensity attenuator, detachable light filter consisting of a set of transmitting light filters, which is part of a light filter unit, objective lens, matrix photodetector which is sensitive in the infrared spectrum, which includes the laser radiation wavelength, connected to an image processing unit, which is in turn connected a signal amplitude meter and a central control unit, wherein the light filter unit is connected to a signal amplitude meter and is configured for replacement of the detachable light filter from the set of light filters based on instructions from the signal amplitude meter, the central control unit is connected to drives and sensors of the two-dimensional optical guidance system, the drive of the telescope, as well as a laser radiation source, configured to set operating modes thereof and has inputs and outputs for communication with external devices.

EFFECT: high accuracy of guiding and delivering laser radiation to a moving object.

5 cl, 1 dwg