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US 12,748,200 B2Granted
Light source characterization system
AssigneeMotional AD LLC
InventorsYong Zhou, Geng Fu
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Abstract
Various measurement systems and methods are disclosed to enable characterizing the optical characteristics of light beams emitted by a light detection and range finding (LIDAR) system or sensor and evaluating the range finding function of user selected lidar channels while the lidar operates under a real operational condition and is exposed to a range of user defined environmental conditions.
Claims23
A system, comprising:
- a housing configured to house a light source within a cavity formed by the housing, wherein the housing comprises;
- an internal surface of the cavity surrounding the light source, the internal surface configured to reflect light beams emitted by the light source,
- a first aperture configured to enable a first at least one light beam to exit the cavity along a straight optical path from the light source passing through the first aperture, wherein the first at least one light beam is emitted by the light source during a first portion of a rotational period of the light source,
- a second aperture configured to enable a second at least one light beam to exit the cavity, wherein the second at least one light beam is emitted by the light source during a second portion of the rotational period of the light source and reflected by the internal surface;
- and
- at least one optical guard housed in the cavity and configured to interact with a third at least one light beam from the light source, wherein the third at least one light beam is emitted by the light source during the first portion of the rotational period of the light source.
3 more elements
Dependencies are inferred from the claim text.