Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Defining the visual adaptation field for mesopic photometry: Effect of a surrounding source position on peripheral adaptation

Published

Author(s)

Yoshihiro Ohno

Abstract

CIE 191:2010 recommends a mesopic photometry system based on peripheral visual tasks. For implementation of the system, the visual adaptation field needs to be defined, taking into account the surrounding luminance effect on the adaptation state. A series of vision experiments in the mesopic range has been conducted to measure the surrounding luminance effect with respect to the angle between a peripheral task point and a point source. The results show that the surrounding luminance effect at the peripheral task point decreases with the angle at a larger slope than existing models, such as Stiles-Holladay equation, CIE general disability glare formula, and Stiles-Crawford equation. Thus, a new model for the surrounding luminance effect has been proposed from the results.
Citation
Lighting Research & Technology
Volume
2016; 0: 1-11
Issue
10.1177/1477153516638555

Keywords

mesopic photometry, adaptation field, peripheral adaptation

Citation

Ohno, Y. (2016), Defining the visual adaptation field for mesopic photometry: Effect of a surrounding source position on peripheral adaptation, Lighting Research & Technology, [online], https://doi.org/10.1177/1477153516638555 (Accessed March 4, 2024)
Created March 31, 2016, Updated June 2, 2021