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Optical contour detector and methods for making and using

  • US 5,278,633 A
  • Filed: 08/06/1992
  • Issued: 01/11/1994
  • Est. Priority Date: 08/06/1992
  • Status: Expired due to Fees
First Claim
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1. An optical contour detector comprising:

  • a source of electromagnetic radiation aimed at a contoured surface, wherein the contoured surface moves with respect to the source of electromagnetic radiation and the surface is at least partially reflective of the electromagnetic radiation;

    a first detector positioned near the contoured surface for detecting electromagnetic radiation reflected from a first portion of the surface;

    a second detector positioned near the surface and adjacent to the first detector for detecting electromagnetic radiation reflected from a second portion of the surface.

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