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Method for determining an optical equipment

  • US 10,451,893 B2
  • Filed: 06/06/2014
  • Issued: 10/22/2019
  • Est. Priority Date: 06/07/2013
  • Status: Active Grant
First Claim
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1. Method implemented for determining an optical equipment, wherein:

  • said optical equipment comprises at least an optical lens and a spectacle frame, the optical lens being mounted in the spectacle frame,the method comprising;

    a wearer data providing step, during which wearer data relating at least to the wearer'"'"'s optical requirements are provided,an optical cost function providing step, during which an optical cost function is provided, the optical cost function being related to the optical function of the at least one optical lens and being defined based at least on part of the wearer data,a comfort cost function providing step, during which a comfort cost function is provided, the comfort cost function being related at least to the weight of the optical equipment,an optical equipment determining step, during which the optical equipment that minimizes the difference between a global cost function and a target value of the global cost function is determined, the global cost function being a weighted sum of the optical and the comfort cost functions,an initial optical equipment providing step, comprising providing an initial optical equipment comprising at least one initial optical lens and an initial spectacle frame, wherein the initial optical lens is adapted to the wearer'"'"'s optical requirements and the initial spectacle frame,a working optical equipment defining step, during which a working optical equipment is defined to be equal to the initial optical equipment,a global cost function evaluation step during which the global cost function is evaluated, anda modifying step, during which the working optical equipment is modified,wherein the evaluation and modifying steps are repeated so as to minimize the difference between the global cost function and a target value of the global cost function.

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