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AUTOMOTIVE HEADLIGHT SYSTEM

  • US 3,617,795 A
  • Filed: 03/16/1970
  • Issued: 11/02/1971
  • Est. Priority Date: 03/16/1970
  • Status: Expired due to Term
First Claim
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1. A vehicle headlight system comprising a first lamp, a second lamp closely adjacent the first, optical means for projecting light from respective lamps on substantially parallel optical axes, said optical means including a first mask in front of the first lamp having a horizontally elongate aperture with greater transmission to the right of the axis of the first lamp, and a second mask in front of the second lamp having a generally vertically symmetrical aperture transmitting substantially higher above its optical axis than the first aperture, and said lamps being adapted To be switched so as to operate in at least two different modes including operation of the first lamp alone and operation of the first and second lamps simultaneously, thereby to produce a low light distribution pattern substantially below a horizontal plane through said axes, or a second light distribution pattern which is a composite of light from both lamps.

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