Patent ID: 9322706
Filing Date: 2016-04-26
CPC Classification: G01J

Claim Text:
1. A method for evaluating discomfort glare comprising: obtaining average luminance information relating to an average luminance La (cd/m calculating an evaluation parameter value based on the average luminance La, the luminance uniformity ratio U, the luminous surface size ω, and the background luminance Lb obtained in the obtaining, the evaluation parameter value being a value of a product of a value based on the La, a value based on the U, and a value based on the ω divided by a value based on the Lb; and outputting the evaluation parameter to an output device for at least one of alerting a user and creating a design lighting specification based upon the evaluation parameter, wherein the luminance uniformity ratio U is a ratio of the average luminance La to a maximum value of the luminance of the luminous surface.