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OPTICAL CHARACTERISTIC EVALUATION METHOD AND OPTICAL CHARACTERISTIC EVALUATION SYSTEM

  • US 20200132551A1
  • Filed: 10/15/2019
  • Published: 04/30/2020
  • Est. Priority Date: 10/29/2018
  • Status: Active Grant
First Claim
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1. An optical characteristic evaluation method which evaluates unevenness of an optical characteristic in an optical film based on analysis of a polarized state of light transmitting through an optical film as an evaluation target and an analyzer, the method comprising:

  • measuring a phase difference and an orientation angle in the optical film in a plurality of positions; and

    quantifying and evaluating the unevenness of the optical characteristic based on a parameter of a vector of output light calculated by the following formula 1 using a vector showing a polarized state of input light and a matrix showing a polarizing characteristic of at least the optical film and the analyzer,wherein,
    F2=

    F
    1  



    formula 1F1;

    Stokes vector or Jones vector of input lightF2;

    Stokes vector or Jones vector of output lightM;

    Mueller matrix or Jones matrix of the optical film as the evaluation target and the analyzer.

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