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Composite light pickup device

  • US 4,645,975 A
  • Filed: 09/04/1984
  • Issued: 02/24/1987
  • Est. Priority Date: 09/04/1984
  • Status: Expired due to Fees
First Claim
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1. A passive composite light pickup device for use in a headlamp control system of an automotive vehicle including:

  • a first lens element means oriented to collect light directed from a narrowly defined range of angles towards the front of the vehicle;

    a second means formed of a light transparent material containing a light activated phosphor dye and having at least one transparent surface attached to said first means and disposed for collecting ambient light directed from a fairly wide range of angles from above the vehicle;

    a pair of fiber optic transmission line respectively associated with said first and second means for coupling a portion of the light collected from said first and second means to respective light sensors within said system, remote from said composite pickup device.

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