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公开(公告)号：US20230103212A1
公开(公告)日：2023-03-30
申请号：US18057401
申请日：2022-11-21
Applicant: Waymo LLC
Inventor： Blaise Gassend , Ralph H. Shepard , Samuel Lenius , Ryan Davis
Abstract: Example embodiments relate to LIDAR systems with multi-faceted mirrors. An example embodiment includes a LIDAR system. The system includes a multi-faceted mirror that includes a plurality of reflective facets, which rotates about a first rotational axis. The system also includes a light emitter configured to emit a light signal toward one or more regions of a scene. Further, the system includes a light detector configured to detect a reflected light signal. In addition, the system includes an optical window positioned between the multi-faceted mirror and the one or more regions of the scene such that light reflected from one or more of the reflective facets is transmitted through the optical window. The optical window is positioned such that the optical window is non-perpendicular to the direction toward which the light emitted along the optical axis is directed for all angles of the multi-faceted mirror.
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公开(公告)号：US11460662B2
公开(公告)日：2022-10-04
申请号：US16232323
申请日：2018-12-26
Applicant: Waymo LLC
Inventor： Blaise Gassend , Ryan Davis , David Duff
Abstract: The present disclosure relates to optical devices and systems, specifically those related to light detection and ranging (LIDAR) systems. An example device includes a shaft defining a rotational axis. The shaft includes a first material having a first coefficient of thermal expansion. The device also includes a rotatable mirror disposed about the shaft. The rotatable mirror includes a multi-sided structure having an exterior surface and an interior surface. The multi-sided structure includes a second material having a second coefficient of thermal expansion. The second coefficient of thermal expansion is different from the first coefficient of thermal expansion. The multi-sided structure also includes a plurality of reflective surfaces disposed on the exterior surface of the multi-sided structure. The multi-sided structure yet further includes one or more support members coupled to the interior surface and the shaft.
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Patent Agency Ranking
公开(公告)号：USD1022746S1
公开(公告)日：2024-04-16
申请号：US29758420
申请日：2020-11-16
Applicant: Waymo LLC
Designer： David Gordon Duff , Blaise Gassend , Ryan Davis , Ralph Hamilton Shepard , John Massey , Pierre-Yves Droz
Abstract: FIG. 1 is front perspective view of a sensor housing according to a first embodiment of the design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof;
FIG. 8 is front perspective view of a sensor housing according to a second embodiment of the design;
FIG. 9 is a front view thereof;
FIG. 10 is a rear view thereof;
FIG. 11 is a left side view thereof;
FIG. 12 is a right side view thereof;
FIG. 13 is a top view thereof; and,
FIG. 14 is a bottom view thereof.
The features illustrated in broken lines form no part of the claimed design.-
公开(公告)号：US20240085564A1
公开(公告)日：2024-03-14
申请号：US18509793
申请日：2023-11-15
Applicant: Waymo LLC
Inventor： Blaise Gassend , Ralph H. Shepard , Samuel Lenius , Ryan Davis
CPC classification number: G01S17/931 , G01C3/06 , G01S7/4808 , G01S7/4813 , G01S7/4815 , G01S7/4816 , G01S7/4817 , G01S17/10 , G01S17/42 , G01S17/89
Abstract: Example embodiments relate to LIDAR systems with multi-faceted mirrors. An example embodiment includes a LIDAR system. The system includes a multi-faceted mirror that includes a plurality of reflective facets, which rotates about a first rotational axis. The system also includes a light emitter configured to emit a light signal toward one or more regions of a scene. Further, the system includes a light detector configured to detect a reflected light signal. In addition, the system includes an optical window positioned between the multi-faceted mirror and the one or more regions of the scene such that light reflected from one or more of the reflective facets is transmitted through the optical window. The optical window is positioned such that the optical window is non-perpendicular to the direction toward which the light emitted along the optical axis is directed for all angles of the multi-faceted mirror.
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公开(公告)号：US11536845B2
公开(公告)日：2022-12-27
申请号：US16235564
申请日：2018-12-28
Applicant: Waymo LLC
Inventor： Blaise Gassend , Ralph H. Shepard , Samuel Lenius , Ryan Davis
Abstract: Example embodiments relate to LIDAR systems with multi-faceted mirrors. An example embodiment includes a LIDAR system. The system includes a multi-faceted mirror that includes a plurality of reflective facets, which rotates about a first rotational axis. The system also includes a light emitter configured to emit a light signal toward one or more regions of a scene. Further, the system includes a light detector configured to detect a reflected light signal. In addition, the system includes an optical window positioned between the multi-faceted mirror and the one or more regions of the scene such that light reflected from one or more of the reflective facets is transmitted through the optical window. The optical window is positioned such that the optical window is non-perpendicular to the direction toward which the light emitted along the optical axis is directed for all angles of the multi-faceted mirror.
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公开(公告)号：US11906813B2
公开(公告)日：2024-02-20
申请号：US17896814
申请日：2022-08-26
Applicant: Waymo LLC
Inventor： Blaise Gassend , Ryan Davis , David Duff
CPC classification number: G02B7/1821 , G01S7/4817 , G01S17/06 , G02B6/26 , G02B26/105 , H01S3/0811
Abstract: The present disclosure relates to optical devices and systems, specifically those related to light detection and ranging (LIDAR) systems. An example device includes a shaft defining a rotational axis. The shaft includes a first material having a first coefficient of thermal expansion. The device also includes a rotatable mirror disposed about the shaft. The rotatable mirror includes a multi-sided structure having an exterior surface and an interior surface. The multi-sided structure includes a second material having a second coefficient of thermal expansion. The second coefficient of thermal expansion is different from the first coefficient of thermal expansion. The multi-sided structure also includes a plurality of reflective surfaces disposed on the exterior surface of the multi-sided structure. The multi-sided structure yet further includes one or more support members coupled to the interior surface and the shaft.
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公开(公告)号：US11662465B2
公开(公告)日：2023-05-30
申请号：US16237427
申请日：2018-12-31
Applicant: Waymo LLC
Inventor： Ryan Davis , Blaise Gassend
CPC classification number: G01S17/26 , G01S17/00 , G02B26/12 , G02B27/0955 , G02B27/0972 , G02B27/0977
Abstract: The present disclosure relates to systems and methods that facilitate a scanning light detection and ranging (LIDAR) device configured to provide an asymmetric illumination pattern. An example system includes a rotatable base configured to rotate about a first axis and a mirror assembly. The mirror assembly is configured to rotate about a second axis, which is substantially perpendicular to the first axis. The system also includes an optical cavity coupled to the rotatable base. The optical cavity includes a photodetector and a photodetector lens arranged so as to define a light-receiving axis. The optical cavity also includes a light-emitter device and a light-emitter lens arranged so as to define a light-emission axis. At least one of the light-receiving axis or the light-emission axis forms a tilt angle with respect to the first axis.
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