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Optical substrate and method of making

  • US 7,180,672 B2
  • Filed: 12/23/2004
  • Issued: 02/20/2007
  • Est. Priority Date: 05/20/2002
  • Status: Expired due to Term
First Claim
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1. An optical substrate, comprising:

  • a surface characterized by a correlation function value of less than about 37 percent of an initial value within a correlation length of about 1 cm or less, wherein the surface is defined by a first surface structure function modulated by a second surface structure function, the surface of the optical substrate producing specular and diffuse light from a first input beam of light.

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