-
公开(公告)号：US20220113419A1
公开(公告)日：2022-04-14
申请号：US17069364
申请日：2020-10-13
Applicant: Waymo, LLC
Inventor： Shashank Sharma , Matthew Last
Abstract: One example system comprises an active sensor that includes a transmitter and a receiver, a first camera that detects external light originating from one or more external light sources to generate first image data, a second camera that detects external light originating from one or more external light sources to generate second image data, and a controller. The controller is configured to perform operations comprising determining a first distance estimate to a first object based on a comparison of the first image data and the second image data, determining a second distance estimate to the first object based on active sensor data, comparing the first distance estimate and the second distance estimate, and determining a third distance estimate to a second object based on the first image data, the second image data, and the comparison of the first and second distance estimates.
-
公开(公告)号：US11230234B1
公开(公告)日：2022-01-25
申请号：US16877446
申请日：2020-05-18
Applicant: Waymo LLC
Inventor： Shashank Sharma
Abstract: The present disclosure relates to systems and methods for attenuating vibrations. An example system includes a camera device with an optical lens. The optical lens defines an optical axis. The example system further includes mechanical fasteners, each mechanical fastener having a first end, a second end coupled to a mounting surface of the vehicle, and a shaft. The shaft has a primary axis parallel to the optical axis and extends through the camera device such that the camera device is able to move through a primary range of motion in a direction along the primary axis and a restricted range of motion in directions perpendicular to the primary axis. The example system additionally includes compliant structures coupled to the camera device, each compliant structure associated with a respective mechanical fastener and configured to change shape in response to motion of the camera device along the primary axis.
-
公开(公告)号：US11223756B1
公开(公告)日：2022-01-11
申请号：US16702054
申请日：2019-12-03
Applicant: Waymo LLC
Inventor： Shashank Sharma
Abstract: An apparatus includes a lens assembly that includes at least one lens that defines an optical axis, a lens holder coupled to the lens assembly, a substrate, an image sensor disposed on the substrate, and an actuator coupled between the lens holder and the substrate and configured to adjust a position of the substrate relative to the lens assembly to reposition the image sensor along the optical axis. The apparatus also includes a position sensor that includes a magnet and a magnetic field sensor. The position sensor is coupled to the substrate and the lens holder. The magnetic field sensor is configured to generate magnetic field data indicating a position of the substrate relative to the lens holder. The apparatus additionally includes circuitry configured to control the actuator based on the magnetic field data to place the image sensor within a depth of focus of the lens assembly.
-
Patent Agency Ranking
公开(公告)号：US12200337B2
公开(公告)日：2025-01-14
申请号：US18311577
申请日：2023-05-03
Applicant: Waymo LLC
Inventor： Shashank Sharma
Abstract: A camera includes a camera focus adjustment device, a lens, and an image sensor coupled to the camera focus adjustment device. The camera focus adjustment device includes a flexure structure. The flexure structure includes an outer framework of structural members continuously interconnected by flexure notch hinges. The flexure structure also includes two inner structural members oriented in parallel and extending from the outer framework of structural members. A gap is between the two inner structural members. The camera focus adjustment device also includes a piezoelectric material within the gap and a pair of wedges within the gap. The pair of wedges is affixed to the piezoelectric material and to one inner structural member of the two inner structural members. Based on temperature-based piezoelectric activity associated with the piezoelectric material, the camera focus adjustment device is operable to move the image sensor relative to the lens.
-
公开(公告)号：US12055632B2
公开(公告)日：2024-08-06
申请号：US17069364
申请日：2020-10-13
Applicant: Waymo, LLC
Inventor： Shashank Sharma , Matthew Last
CPC classification number: G01S17/89 , B60R1/12 , G01S17/48 , G06T7/85 , B60R2001/1223
Abstract: One example system comprises an active sensor that includes a transmitter and a receiver, a first camera that detects external light originating from one or more external light sources to generate first image data, a second camera that detects external light originating from one or more external light sources to generate second image data, and a controller. The controller is configured to perform operations comprising determining a first distance estimate to a first object based on a comparison of the first image data and the second image data, determining a second distance estimate to the first object based on active sensor data, comparing the first distance estimate and the second distance estimate, and determining a third distance estimate to a second object based on the first image data, the second image data, and the comparison of the first and second distance estimates.
-
公开(公告)号：US20240195950A1
公开(公告)日：2024-06-13
申请号：US18581042
申请日：2024-02-19
Applicant: Waymo LLC
Inventor： Benjamin Frevert , Shashank Sharma
IPC: H04N17/00 , B60S1/04 , B60S1/46 , B60S1/54 , G01N21/94 , G01S7/481 , G01S17/931 , G06T5/73 , H04N23/56 , H04N23/80
CPC classification number: H04N17/002 , B60S1/04 , B60S1/46 , B60S1/54 , G01N21/94 , G01S7/4817 , G01S17/931 , G06T5/73 , H04N23/56 , H04N23/80 , G06T2207/30168 , G06T2207/30248
Abstract: The present disclosure relates to contaminant detection systems and related optical systems and methods. An example contaminant detection system includes an optical coupler configured to couple light into and/or out of an optical element. The contaminant detection system also includes a plurality of light-emitter devices configured to emit emission light toward the optical coupler. The contaminant detection system additionally includes a plurality of detector devices configured to detect at least a portion of the emission light by way of the optical element and the optical coupler. The plurality of detector devices is also configured to provide detector signals indicative of a presence of a contaminant on the optical element.
-
公开(公告)号：US11680786B2
公开(公告)日：2023-06-20
申请号：US17453748
申请日：2021-11-05
Applicant: Waymo LLC
Inventor： Shashank Sharma , Matthew Last , Prasanna Kalkura , Paul Schaefer
Abstract: An apparatus includes a lens assembly that includes at least one lens that defines an optical axis. The apparatus also includes a substrate, an image sensor disposed on the substrate, and an actuator coupled to the substrate and configured to adjust a position of the substrate relative to the lens assembly to move the image sensor along the optical axis. The apparatus additionally includes a capacitive position sensor that includes a first capacitive plate coupled to the substrate and a second capacitive plate coupled to the lens assembly. The capacitive position sensor may be configured to generate a capacitance measurement indicative of the position of the substrate relative to the lens assembly. The apparatus further includes circuitry configured to control the actuator based on (i) the capacitance measurement and (ii) a target position of the image sensor relative to the lens assembly.
-
公开(公告)号：US11678039B2
公开(公告)日：2023-06-13
申请号：US17658041
申请日：2022-04-05
Applicant: Waymo LLC
Inventor： Shashank Sharma
Abstract: A camera includes a camera focus adjustment device, a lens, and an image sensor coupled to the camera focus adjustment device. The camera focus adjustment device includes a flexure structure. The flexure structure includes an outer framework of structural members continuously interconnected by flexure notch hinges. The flexure structure also includes two inner structural members oriented in parallel and extending from the outer framework of structural members. A gap is between the two inner structural members. The camera focus adjustment device also includes a piezoelectric material within the gap and a pair of wedges within the gap. The pair of wedges is affixed to the piezoelectric material and to one inner structural member of the two inner structural members. Based on temperature-based piezoelectric activity associated with the piezoelectric material, the camera focus adjustment device is operable to move the image sensor relative to the lens.
-
-
-
-
-
-
-
Search Results
28
records
(took 0.013 seconds)
