Automatic headlamp dimmer with optical baffle

  • US 5,124,549 A
  • Filed: 10/15/1990
  • Issued: 06/23/1992
  • Est. Priority Date: 10/15/1990
  • Status: Expired due to Term
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First Claim
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1. A vehicle light sensor comprising:

  • a detector for producing an electrical signal in response to incoming light;

    upper and lower enclosure members for enclosing said detector;

    a lens for receiving light and focusing it on said detector;

    at least one of said upper and lower enclosure members having a receptacle for mounting said lens;

    optical chamber within said enclosure members disposed adjacent to said light detector for preventing light that does not pass through said lens from reaching said light detector; and

    a plurality of spaced, thin-walled, optical baffles protruding into said optical chamber, wherein off axis light outside a desired entrance angle is incident on one of said baffles and is captured between said baffle and an adjacent baffle, whereby said off axis light is substantially prevented from reaching said detector.

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