METHOD FOR DETECTING OPTICAL AND OPTOELECTRONIC DEVICES Russian patent published in 2021 - IPC G01S17/06 

FIELD: optoelectronic instrumentation.

SUBSTANCE: invention relates to optoelectronic instrumentation and can be used in survey and search optoelectronic laser ranging systems. The zone of the proposed location of optical and optoelectronic devices is irradiated with laser polarized radiation, the reflected radiation is received and the reflected radiation is divided into two orthogonally polarized components in a polarization divider, the sensitive area of the photodetector is divided into two unequal zones for separate registration of the first and second components reflected radiation, the first component is reflected from the first element of the polarization divider and focuses it in the first zone of the sensitive area of the photodetector device, the second component is reflected from the second element of the polarization divider, additional focusing is performed when compensating the optical path and the focal length is reduced and focused in the second zone of the sensitive area of the photodetector devices generate a signal proportional to the ratio of the intensity of the reflected radiation having a polarization plane orthogonal to the polarization plane about of incident radiation, to the intensity of radiation having a plane of polarization coinciding with the plane of polarization of the incident radiation, by the magnitude of this signal, a system of optical and optoelectronic devices is detected in the field of view, the coordinates of the detected targets are measured and the distance to them is measured.

EFFECT: invention increases efficiency of detecting devices by increasing noise immunity, increasing accuracy of determining coordinates of detected targets.

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