LiDAR SYSTEM FOR VEHICLE
AssigneeStanley Electric Co., Ltd.
InventorShinya KOGURE
Life of this patent
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Abstract
Provided is a LIDAR system for a vehicle capable of optimizing the light distribution of laser light to be irradiated to an irradiation range while simplifying the structure of an irradiation-side optical system. A lens of an irradiation device of a LIDAR system has a reflective surface as a conical side surface, where a vertex thereof is located on the side of a light source and the central axis (auxiliary line) thereof is deviated from the optical axis (auxiliary line) of the light source, to reflect laser light from the light source radially on the reflective surface.
Claims11
A LiDAR system for a vehicle comprising:
- an irradiation device that emits laser light toward a predetermined irradiation range;
- and
- a light receiving device that has a predetermined light-receiving range including, as a search range, a range overlapping the irradiation range to receive reflected light of the laser light from a target in the search range,
- wherein the irradiation device includes
- a light source that emits the laser light, and
- an optical part having, as a reflective surface, at least part of a conical side surface in a circumferential direction, where a vertex of the conical side surface is located on a side of the light source and a central axis passing through the vertex is deviated from an optical axis of the light source, to reflect the laser light, emitted from the light source and incident from the vertex side, radially on the reflective surface.
A LiDAR system for a vehicle comprising:
- an irradiation device that emits laser light toward a predetermined irradiation range;
- and
- a light receiving device that has a predetermined light-receiving range including, as a search range, a range overlapping the irradiation range to receive reflected light of the laser light from a target in the search range,
- wherein the irradiation device includes
- a plurality of light sources having optical axes parallel to one another to emit laser light, and
- a plurality of optical parts provided for respective light sources, each having, as a reflective surface, at least part of a conical side surface in a circumferential direction, where a vertex of the conical side surface is located on a side of a corresponding light source, to reflect the laser light, emitted from the corresponding light source and incident from the vertex side, radially on the reflective surface,
- at least one of the plurality of optical parts is a first optical part whose central axis is deviated from an optical axis of the corresponding light source, and
- at least another one of the plurality of optical parts is a second optical part whose central axis matches the optical axis of the corresponding light source.
Dependencies are inferred from the claim text.