Patent ID: 6795751
Filing Date: 2004-09-21
Classification: G01J

Abstract:
A method of obtaining a desired mixture of at least two light sources, the light sources being mixed in a proportion, the desired mixture having at least one optical property that is influenced by the proportion of the light sources in the desired mixture, the desired mixture having a desired range for the optical property, the method comprising the steps of:mixing the light sources to form a working mixture, each of the light sources having an initial weight and a spectral content; preparing a prototype with the working mixture; measuring the optical property of the prototype; determining an initial weighted optical property of the working mixture based on the initial weights and spectral contents of the light sources; adjusting the initial weights of the light sources until the initial weighted optical property of the working mixture converges with the measured optical property of the prototype; comparing the optical property of the prototype with the desired range; adjusting the proportion of the light sources until measured optical property of the prototypes converges within the desired range.