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Spectacle lens evaluation method and evaluation device

  • US 6,222,621 B1
  • Filed: 10/08/1999
  • Issued: 04/24/2001
  • Est. Priority Date: 10/12/1998
  • Status: Expired due to Term
First Claim
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1. A method of evaluating a spectacle lens, comprising the steps of:

  • finding the optical properties of each position on a spectacle lens relating to the principal ray, or beam comprising the principal ray, that passes through the center of rotation of the eyeball from the three-dimensional data of the spectacle lens, the parameters for the state in which the spectacle lens is worn comprising distance from the surface of said spectacle lens on the eye side to the center of rotation of the eyeball as a parameter, and the material parameters of the spectacle lens comprising the index of refraction of said spectacle lens as a parameter; and

    evaluating the spectacle lens.

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