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公开(公告)号：US11474211B2
公开(公告)日：2022-10-18
申请号：US16660980
申请日：2019-10-23
Applicant: WAYMO LLC
Inventor： Paul Karplus , Blaise Gassend , David Duff
Abstract: Aspects of the technology employ sensors having high speed rotating mirror assemblies. For instance, the sensors may be Lidar sensors configured to detect people and other objects in an area of interest. A given mirror assembly may have a triangular or other geometric cross-sectional shape. The reflective faces of the mirror assembly may connect along edges or corners. In order to minimize wind drag and torque issues, the corners are rounded, filleted, beveled, chamfered or otherwise truncated. Such truncation may extend the length of the mirror side. The mirror assembly may employ one or more beam stops, light baffles and/or acoustic/aerodynamic baffles. These sensors may be employed with self-driving or manual driven vehicles or other equipment. The sensors may also be used in and around buildings.
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Patent Agency Ranking
公开(公告)号：US20210405157A1
公开(公告)日：2021-12-30
申请号：US16975385
申请日：2020-03-04
Applicant: Waymo LLC
Inventor： Blaise Gassend , David Duff , Pierre-Yves Droz
IPC: G01S7/481 , G01S7/497 , G01S17/931
Abstract: The present disclosure relates to optical systems and methods of their manufacture. An example optical system includes a transmitter. The transmitter includes a reference axis and a light emitter device configured to emit light along a transmit path. The optical system also includes a rotatable mount configured to adjust an orientation of the light emitter device so as to adjust a pitch angle, a roll angle, or a yaw angle of the transmit path with respect to the reference axis. The optical system additionally includes a translatable mount configured to adjust a position of the light emitter device along a reference plane that is perpendicular to the reference axis.
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公开(公告)号：US20250044421A1
公开(公告)日：2025-02-06
申请号：US18895206
申请日：2024-09-24
Applicant: Waymo, LLC
Inventor： Blaise Gassend , David Duff , Paul Karplus , Hui Son , Alex Rivas
Abstract: The present disclosure relates to systems and devices having a rotatable mirror assembly. An example system includes a housing and a rotatable mirror assembly. The rotatable mirror assembly includes a plurality of reflective surfaces, a shaft defining a rotational axis, and a mirror body coupling the plurality of reflective surfaces to the shaft. The mirror body includes a plurality of flexible support members. The rotatable mirror assembly also includes a coupling bracket configured to removably couple the rotatable mirror assembly to the housing. The system also includes a transmitter configured to emit emission light into an environment of the system after interacting with at least one reflective surface of the plurality of reflective surfaces. The system additionally includes a receiver configured to detect return light from the environment after interacting with the at least one reflective surface of the plurality of reflective surfaces.
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公开(公告)号：US20230194854A1
公开(公告)日：2023-06-22
申请号：US17644717
申请日：2021-12-16
Applicant: Waymo LLC
Inventor： David Duff , Michael Brickner , Hugh Ross
CPC classification number: G02B26/0816 , G01S7/4817 , G01S17/931
Abstract: The present disclosure relates to systems and methods that involve a rotatable mirror assembly. An example system includes a shaft configured to rotate about a rotational axis. A portion of the shaft can be tapered, either in a stepped profile or a ramped profile. In the surface of the shaft can be one or more circumferentially-indented grooves. The system also includes a mirror body coupled to the tapered shaft via the at least one circumferentially-indented groove. The mirror body is configured to have a polygonal cross-section, and reflective surfaces can be disposed along at least one external surface of the mirror body. Example methods of manufacturing the rotatable mirror assembly are also disclosed.
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公开(公告)号：US20220120877A1
公开(公告)日：2022-04-21
申请号：US17565572
申请日：2021-12-30
Applicant: Waymo LLC
Inventor： Blaise Gassend , David Duff , Pierre-Yves Droz , Paul Karplus , Jason Watson , Michael Brickner , Alex Rivas
Abstract: The present disclosure relates to devices, lidar systems, and vehicles that include optical redirectors. An example lidar system includes a transmitter and a receiver. The transmitter includes at least one light-emitter device configured to transmit emission light into an environment of the lidar system. The receiver is configured to detect return light from the environment and includes a plurality of apertures, a plurality of photodetectors, and a plurality of optical redirectors. Each optical redirector is configured to optically couple a respective portion of return light from a respective aperture to at least one photodetector of the plurality of photodetectors. At least one of the optical redirectors includes an optically isolating coating.
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公开(公告)号：US20210199779A1
公开(公告)日：2021-07-01
申请号：US17134272
申请日：2020-12-26
Applicant: Waymo LLC
Inventor： Blaise Gassend , David Duff , Paul Karplus , Hui Son , Alex Rivas
Abstract: The present disclosure relates to systems and devices having a rotatable mirror assembly. An example system includes a housing and a rotatable mirror assembly. The rotatable mirror assembly includes a plurality of reflective surfaces, a shaft defining a rotational axis, and a mirror body coupling the plurality of reflective surfaces to the shaft. The mirror body includes a plurality of flexible support members. The rotatable mirror assembly also includes a coupling bracket configured to removably couple the rotatable mirror assembly to the housing. The system also includes a transmitter configured to emit emission light into an environment of the system after interacting with at least one reflective surface of the plurality of reflective surfaces. The system additionally includes a receiver configured to detect return light from the environment after interacting with the at least one reflective surface of the plurality of reflective surfaces.
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