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公开(公告)号：US11927440B2
公开(公告)日：2024-03-12
申请号：US18143214
申请日：2023-05-04
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.
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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.
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公开(公告)号：US20230273006A1
公开(公告)日：2023-08-31
申请号：US18143214
申请日：2023-05-04
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.
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公开(公告)号：US20230148358A1
公开(公告)日：2023-05-11
申请号：US17453748
申请日：2021-11-05
Applicant: Waymo LLC
Inventor： Shashank Sharma , Matthew Last , Prasanna Kalkura , Paul Schaefer
CPC classification number: G01B7/003 , G02B7/102 , H04N5/23212 , H04N5/2254
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.
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