Vehicular vision system with lens defogging feature

    公开(公告)号:US12115912B2

    公开(公告)日:2024-10-15

    申请号:US18068571

    申请日:2022-12-20

    CPC classification number: B60R1/0602 H04N23/52 H04N23/55

    Abstract: A vehicular vision system includes a camera module configured to be disposed at a vehicle. An image processor processes multiple frames of image data captured by the imager of the camera module. With the camera module disposed at the vehicle, the heating device is activated to heat a lens of the camera module responsive to determination of lens occlusion at the lens. Responsive at least in part to determination of lens occlusion at the lens, and via processing of frames of captured image data while the heating device is activated, the vehicular vision system determines a change in degree of lens occlusion occurring between capture of a previous frame of captured image data and capture of a current frame of captured image data. The heating device is deactivated responsive to determination that the change in degree of lens occlusion is less than a threshold amount.

    VEHICULAR CAMERA ASSEMBLY PROCESS USING LASER ETCHING FOR ACTIVE FOCUSING AFTER LENS IS SECURED RELATIVE TO IMAGER

    公开(公告)号:US20220377213A1

    公开(公告)日:2022-11-24

    申请号:US17663450

    申请日:2022-05-16

    Abstract: A vehicular camera system includes a vehicular camera including a camera housing and an imager printed circuit board (imager PCB). The camera housing includes a first portion and a second portion joined with the first portion. The first portion includes a lens barrel accommodating a lens that includes a plurality of lens optics. The imager PCB includes an imager and is attached at the first portion of the camera housing with the imager aligned with the lens. With the imager aligned with the lens, the lens focuses an image at the imager. After the imager PCB is attached at the first portion of the camera housing with the imager aligned with the lens, at least one lens optic of the lens is laser processed to adjust the focus of the lens at the imager.

    VEHICULAR CAMERA WITH LENS DEFOGGING FEATURE

    公开(公告)号:US20200314311A1

    公开(公告)日:2020-10-01

    申请号:US16830535

    申请日:2020-03-26

    Abstract: A vehicular camera for a vehicular vision system includes a housing having a front housing portion and a rear housing portion, with the front housing portion including a lens barrel for accommodating a lens. A heating device is disposed at an outermost lens element of the lens. The heating device includes a pair of electrically conductive elements that are routed along the lens barrel for electrical connection to circuitry at a printed circuit board. An outer end of each of the electrically conductive elements is disposed at and in contact with a heating element at and in contact with the inner surface of the outermost lens element. When powered, the heating element heats the outermost lens element to evaporate moisture or condensation thereat. The camera is configured to be disposed at an exterior portion of a vehicle so as to have a field of view exterior of the vehicle.

    VEHICULAR CAMERA WITH AUTOMATIC LENS DEFOGGING FEATURE

    公开(公告)号:US20200307455A1

    公开(公告)日:2020-10-01

    申请号:US16830517

    申请日:2020-03-26

    Abstract: A vehicular vision system includes a camera having a housing and a lens barrel including a lens. The camera is configured to be disposed at an exterior portion of a vehicle so as to have a field of view exterior of the vehicle. An image processor is operable to process frames of image data captured by the camera. A heating device is disposed at or near the lens and is activated to initially heat the lens responsive to determination, via processing by the image processor of a frame of captured image data, of a threshold degree of lens occlusion at the lens. The heating device is (i) deactivated responsive to determination that the determined lens occlusion is not water or moisture, or (ii) further powered to increase the heating function responsive to determination that the determined occlusion is water or moisture.

    VEHICULAR DRIVER MONITORING SYSTEM
    6.
    发明公开

    公开(公告)号:US20230224435A1

    公开(公告)日:2023-07-13

    申请号:US18167925

    申请日:2023-02-13

    Inventor: Zhongyao Liu

    Abstract: A vehicular driver monitoring system includes a camera disposed within and viewing within an interior cabin of a vehicle. The camera includes a lens and an image sensor. The camera is operable to capture image data. Electronic circuitry of an electronic control unit (ECU) includes an image processor for processing image data captured by the camera. With a driver of the vehicle sitting in a driver seat of the vehicle, light is reflected off a portion of the driver to impinge at the lens of the camera. The vehicular driver monitoring system, via processing at the ECU of image data captured by the camera, determines a deficiency in captured image data arising from light impinging at the lens. The determined deficiency in captured image data arises from an occlusion at the lens of the camera.

    Vehicular camera with automatic lens defogging feature

    公开(公告)号:US11535158B2

    公开(公告)日:2022-12-27

    申请号:US16830517

    申请日:2020-03-26

    Abstract: A vehicular vision system includes a camera having a housing and a lens barrel including a lens. The camera is configured to be disposed at an exterior portion of a vehicle so as to have a field of view exterior of the vehicle. An image processor is operable to process frames of image data captured by the camera. A heating device is disposed at or near the lens and is activated to initially heat the lens responsive to determination, via processing by the image processor of a frame of captured image data, of a threshold degree of lens occlusion at the lens. The heating device is (i) deactivated responsive to determination that the determined lens occlusion is not water or moisture, or (ii) further powered to increase the heating function responsive to determination that the determined occlusion is water or moisture.

    VEHICULAR VISION SYSTEM WITH LENS DEFOGGING FEATURE

    公开(公告)号:US20230118128A1

    公开(公告)日:2023-04-20

    申请号:US18068571

    申请日:2022-12-20

    Abstract: A vehicular vision system includes a camera module configured to be disposed at a vehicle. An image processor processes multiple frames of image data captured by the imager of the camera module. With the camera module disposed at the vehicle, the heating device is activated to heat a lens of the camera module responsive to determination of lens occlusion at the lens. Responsive at least in part to determination of lens occlusion at the lens, and via processing of frames of captured image data while the heating device is activated, the vehicular vision system determines a change in degree of lens occlusion occurring between capture of a previous frame of captured image data and capture of a current frame of captured image data. The heating device is deactivated responsive to determination that the change in degree of lens occlusion is less than a threshold amount.

    VEHICULAR CAMERA WITH TEMPERATURE INVARIANT LENS SPACERS

    公开(公告)号:US20220357551A1

    公开(公告)日:2022-11-10

    申请号:US17814578

    申请日:2022-07-25

    Abstract: A vehicular camera includes a circuit board having an imager disposed at a first side of the circuit board. A lens barrel accommodates a lens assembly having a plurality of lens elements spaced apart along the lens barrel by respective lens spacers. Each lens spacer is formed of a material having a coefficient of thermal expansion (CTE) of 5 ppm/° C. or less. The circuit board is positioned at a lens holder, and the lens barrel is positioned at a lens holder so as to optically align the lens and the imager. The lens barrel is formed of a material having a CTE that matches within ten percent of the CTE of the material that forms the lens holder, with the CTEs of the lens barrel and lens holder materials being greater than the CTE of the material of the lens spacers.

    DRIVER MONITORING SYSTEM USING CAMERA WITH ADJUSTABLE MIRROR

    公开(公告)号:US20210392297A1

    公开(公告)日:2021-12-16

    申请号:US17303917

    申请日:2021-06-10

    Inventor: Zhongyao Liu

    Abstract: A vehicular driver monitoring system includes a camera disposed within a vehicle and having a field of view interior of the vehicle, and an adjustable mirror disposed within the vehicle. The adjustable mirror includes a mirror reflector that reflects light incident thereat. The camera views the adjustable mirror and captures image data based on light reflected by the mirror reflector of the adjustable mirror toward the camera. With a driver of the vehicle sitting in a driver seat of the vehicle, light reflected off a portion of the driver is reflected by the mirror reflector of the adjustable mirror toward the camera. An electronic control unit (ECU), responsive to processing by an image processor of image data captured by the camera, adjusts the adjustable mirror to reflect the portion of the driver toward a region of the lens of the camera.

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