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Apparatus for controlling headlights by counterlight

  • US 3,316,442 A
  • Filed: 12/13/1965
  • Issued: 04/25/1967
  • Est. Priority Date: 03/27/1958
  • Status: Expired due to Term
First Claim
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1. APPARATUS FOR DIRECTING AN ILLUMINATING BEAM IN AN AHEAD DIRECTION FROM A MOVABLE VEHICLE WHICH COMPRISES A FIRST, POLYGONAL MIRROR FOR SCANNING AN AHEAD POSITIONED ANGULAR SECTOR FOR SELECTIVELY DIRECTING LIGHT RECEIVED FROM SAID SECTOR IN RESPONSE TO THE DIRECTION OF RECEIPT, MOUNTING MEANS FOR SAID MIRROR FOR ENABLING ROTATION THEREOF ABOUT AN AXIS POSITIONED VERTICALLY WITH RESPECT TO SAID AHEAD DIRECTION, A PHOTOCELL POSITIONED IN RECEIVING RELATION WITH LIGHT REFLECTED FROM SAID MIRROR FOR GENERATING A CONTROL SIGNAL IN RESPONSE TO LIGHT RECEIVED FROM SAID MIRROR, AN ARRAY OF PLURAL DIRECTIVE LIGHT SOURCES FOR DISPOSITION ON SAID VEHICLE FOR COLLECTIVELY GENERATING AN ILLUMINATING BEAM IN SAID AHEAD DIRECTION WHEN ENERGIZED, ROTATABLE SWITCHING MEANS, SAID LAST NAMED MEANS HAVING MOUNTING MEANS FOR ROTATION IN RELATION WITH SAID MIRROR, CONNECTING MEANS FOR SELECTIVELY ENERGIZING THE LIGHT SOURCES OF SAID ARRAY IN RESPONSE TO THE ROTARY POSITIONING OF SAID ROTATABLE SWITCH MEANS AND TO THE COOPERATIVE OCCURRENCE OF SAID CONTROL SIGNAL.

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