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Headlight aiming apparatus and display

  • US 5,164,785 A
  • Filed: 02/08/1991
  • Issued: 11/17/1992
  • Est. Priority Date: 02/08/1991
  • Status: Expired due to Term
First Claim
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1. A method of aiming a vehicle headlight, comprising:

  • projecting a light beam from a vehicle headlight onto a reflective surface,sensing the intensity of the projected light beam in each cell in a matrix of cells overlying the reflected light beam and generating for each cell an electrical signal indicative of the intensity of the light beam in the cell,comparing at least some of the electrical signals to each other to determine whether the light beam is aimed within a prescribed degree of accuracy,selectively displaying at least some of the electrical signals as a simulated light beam to visually describe the light intensity pattern of the vehicle headlight on a simulated road surface,selectively displaying a simulated light beam for a properly aimed headlight on the simulated road surface to indicate the relative difference between the vehicle headlight intensity pattern and a properly aimed headlight intensity pattern.

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