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Active vision system with subliminally steered and modulated lighting

  • US 9,669,755 B2
  • Filed: 11/08/2011
  • Issued: 06/06/2017
  • Est. Priority Date: 11/08/2011
  • Status: Active Grant
First Claim
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1. An active vision system for a vehicle comprising:

  • an image capture device for capturing images in a region exterior of a vehicle; and

    a headlamp control unit for controlling a vehicle headlamp beam for illuminating an environment exterior of a vehicle, the headlamp control unit configured to selectively illuminate between making a path of travel of the vehicle along a road visible to a driver of the vehicle and making the region exterior of the vehicle visible for capturing images by the image capture device including the headlamp control unit directing the vehicle headlamp beam in a first direction for illuminating a primary region for illuminating the path of travel and re-directing the vehicle headlamp beam in a second direction for illuminating a secondary region;

    wherein the headlamp control unit utilizes a duty cycle for controlling a first cycle time that the vehicle headlamp beam illuminates the path of travel for making the road visible to the driver and for controlling a second cycle time that the vehicle headlamp beam makes the region visible for capturing images by the image capture device,wherein the image capture device is synchronized with headlamp control unit for capturing images in the secondary region when headlamp beam is redirected in the second direction, andwherein the image capture device is steerable to a respective position for capturing images in the secondary region.

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