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Apparatus and method of inspection of specular and semi-specular surfaces

  • US 5,636,024 A
  • Filed: 09/10/1996
  • Issued: 06/03/1997
  • Est. Priority Date: 10/05/1994
  • Status: Expired due to Fees
First Claim
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1. A method of inspecting a specular or semi-specular surface of any object by a viewer comprising:

  • illuminating a pattern having at least one defined generally edge characteristic and a reference line which is generally perpendicular to the edge characteristic;

    positioning the pattern relative to the object and the viewer so that the illuminated pattern is reflected in the surface of the object at an angle or angles incident to the viewer.

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