A method for evaluating discomfort glare from windows: Part 1. A formula for evaluating discomfort glare from large glare sources with uniform luminance

Wonwoo Kim, Yasuko Koga, Masayasu Hara

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A new formula is proposed for evaluating discomfort glare from large glare sources with uniform luminance. The formula has four parameters: luminance of the glare source, size of the glare source, background luminance and position index. An experiment was conducted to investigate the effect of each parameter on the evaluation of discomfort glare. Twenty subjects evaluated discomfort glare from the model window. The new formula shows the relation between the degree of discomfort glare and the parameters. The formula is distinct from other formulas in that it has a simple form and the background luminance has little effect on the degree of discomfort glare. It is expected that discomfort glare from large glare sources with uniform luminance can be appraised using the formula.

Original languageEnglish
Pages (from-to)63-68
Number of pages6
JournalShomei Gakkai Shi
Volume91
Issue number2
DOIs
Publication statusPublished - May 31 2007
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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