LIDAR SYSTEMS AND METHODS Russian patent published in 2024 - IPC G01S17/58 

FIELD: physics.

SUBSTANCE: invention relates to navigation equipment, in particular to lidar systems and methods for detecting objects in the environment of an autonomous vehicle. Result is achieved by the fact that the disclosed lidar system comprises an emitter configured to emit at least one light beam; detector configured to receive light reflected from surrounding objects; and a rotating scanning element comprising a reflecting prism with at least four faces inclined relative to the axis of rotation, and an annular element with an inner edge surface extending around an axis of rotation substantially in a plane parallel to the axis of rotation, wherein the normal to the inner surface located at a variable angle varies from perpendicular to inclined relative to the axis of rotation, and the emitter, the detector and the rotating scanning element are made so that the beam falls on the inner surface of the annular element, and then on one of the at least four faces of the reflecting prism, wherein the angle of incidence of the beam on the face depends on the variable angle of the annular element.

EFFECT: reduced distortions and non-uniformity of distribution of output beams.

14 cl, 10 dwg