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Variable light distribution type headlamp

  • US 5,138,540 A
  • Filed: 04/23/1991
  • Issued: 08/11/1992
  • Est. Priority Date: 04/24/1990
  • Status: Expired due to Fees
First Claim
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1. A variable light distribution type headlamp comprising:

  • a projector lamp, a fixed lens, and a movable lens disposed on the optical axis of said projector lamp forward of said projector lamp, said movable lens being a condensing lens, said fixed lens being a cylindrical concave lens, a focal length and a range of movement of said movable lens being such that front focal points of said movable and fixed lenses coincide when both lenses are close to each other.

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