Patent Document ID: 7659982
Application ID: 11839099
Patent Status: 1

Claim One:
1. Method of quantitatively evaluating a color filter, comprising the following steps: /1/ measuring a transmission spectrum of the filter over a visible light interval using a spectrophotometer; /2/ obtaining, on the basis of the transmission spectrum of the filter and of a reflection spectrum of a reference hue sample, optical data relating to a simulation of an observation of the hue sample through the filter; /3/ introducing, into a numerical color appearance model, the optical data relating to the simulation of the observation of the hue sample through the filter, so as to obtain, for said sample, a value of at least one visual perceptive attribute; and /4/ calculating a deviation between the perceptive attribute value obtained for the simulation of the observation of the hue sample through the filter and a value of said perceptive attribute for an observation of the same sample without the filter, said deviation forming an evaluation of the restitution of the hue of the reference sample by the color filter.