Optical scanner noise reduction with improved air flow
AssigneeSeyond, Inc.
InventorsChen Gu, Yimin Li
Life of this patent
Estimating the term…
Abstract
An optical scanning device for light ranging and detection (LiDAR) is provided. The optical scanning device comprises a rotatable polygon reflector having a plurality of reflective facets. The rotatable polygon reflector is configured to rotate about a first rotation axis in a first rotation direction. The optical scanning device further comprises one or more fluid circulation devices disposed alongside the rotatable polygon reflector or attached to the rotatable polygon reflector. The one or more fluid circulation devices are configured to rotate about a second rotation axis to form a fluid circulation surrounding the plurality of reflective facets of the rotatable polygon reflector. The fluid circulation is at least partially in the first rotation direction.
Claims25
An optical scanning device for light ranging and detection (LiDAR), the device comprising:
- a rotatable polygon reflector having a plurality of reflective facets, the rotatable polygon reflector being configured to rotate about a first rotation axis in a first rotation direction;
- a polygon motor axle mounted to the rotatable polygon reflector, the polygon motor axle being configured to cause the rotatable polygon reflector to rotate about the first rotational axis;
- and
- one or more fluid circulation devices disposed alongside, attached to, or forming a part of the rotatable polygon reflector, wherein the one or more fluid circulation devices are configured to rotate about a second rotation axis to form a fluid circulation surrounding the plurality of reflective facets of the rotatable polygon reflector, the fluid circulation being at least partially in the first rotation direction.
A light ranging and detection (LiDAR) system comprising an optical scanning device, the optical scanning device comprises:
- a rotatable polygon reflector having a plurality of reflective facets, the rotatable polygon reflector being configured to rotate about a first rotation axis in a first rotation direction;
- a polygon motor axle mounted to the rotatable polygon reflector, the polygon motor axle being configured to cause the rotatable polygon reflector to rotate about the first rotational axis;
- and
- one or more fluid circulation devices disposed alongside, attached to, or forming a part of the rotatable polygon reflector, wherein the one or more fluid circulation devices are configured to rotate about a second rotation axis to form a fluid circulation surrounding the plurality of reflective facets of the rotatable polygon reflector, the fluid circulation being at least partially in the first rotation direction.
A vehicle comprising a light ranging and detection (LiDAR) system comprising an optical scanning device, the optical scanning device comprises:
- a rotatable polygon reflector having a plurality of reflective facets, the rotatable polygon reflector being configured to rotate about a first rotation axis in a first rotation direction;
- a polygon motor axle mounted to the rotatable polygon reflector, the polygon motor axle being configured to cause the rotatable polygon reflector to rotate about the first rotational axis;
- and
- one or more fluid circulation devices disposed alongside, attached to, or forming a part of the rotatable polygon reflector, wherein the one or more fluid circulation devices are configured to rotate about a second rotation axis to form a fluid circulation surrounding the plurality of reflective facets of the rotatable polygon reflector, the fluid circulation being at least partially in the first rotation direction.
Dependencies are inferred from the claim text.