Brightness perception throughout the entire visual field

Tasuku Watanuki, Hiroshi Takahashi, Takashi Irikura

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Recently, research has been done from various directions to evaluate the brightness of spaces. However, no studies have been conducted regarding quantitative measurements of the brightness at different positions in a visual field. That is, a model for evaluating the brightness of spaces and lighting design techniques have not been considered much regarding the brightness at different positions in the visual field. Therefore, in this study, the sensitivity to brightness at different positions in the visual field was investigated in order to quantify brightness perception throughout the entire visual field. The experimental results show the tendency for Lm/Lt rises as the visual angle increases. Moreover, they show the Lm/Lt in the vertical lower direction is higher than that in other directions, especially at 20 degrees or more.

Original languageEnglish
Pages (from-to)258-262
Number of pages5
JournalJournal of the Illuminating Engineering Institute of Japan (Shomei Gakkai Shi)
Volume99
Issue number5
Publication statusPublished - 2015

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Keywords

  • Brightness
  • Brightness sensitivity
  • Entire visual field
  • Luminance

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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