Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

System of mesopic photometry for evaluating lights in terms of comparative brightness relationships

Not Accessible

Your library or personal account may give you access

Abstract

A photometric system assessing lights in the mesopic range in terms of comparative brightness relationships is described. The system is based on a weighted geometric mean of the CIE photopic luminance modified by the brightness-to-luminance ratio (B/L) and the CIE scotopic luminance to provide an equivalent luminance that corresponds to comparative brightness relationships of lights in the mesopic range. The weighting coefficient, called the adaptation coefficient, is defined as a function of equivalent luminance, so an iterative calculation is required to obtain an appropriate equivalent luminance. Examples of how to calculate the equivalent luminance and an experimental evaluation of the system are described.

© 1992 Optical Society of America

Full Article  |  PDF Article
More Like This
Spectral luminous efficiency functions in the mesopic range

Ken Sagawa and Keishiro Takeichi
J. Opt. Soc. Am. A 3(1) 71-75 (1986)

Effective contrast of colored stimuli in the mesopic range: a metric for perceived contrast based on achromatic luminance contrast

Helen C. Walkey, John L. Barbur, J. Alister Harlow, Antony Hurden, Ian R. Moorhead, and Julie A. F. Taylor
J. Opt. Soc. Am. A 22(1) 17-28 (2005)

Mesopic luminous-efficiency functions for various adapting levels

Hirohisa Yaguchi and Mitsuo Ikeda
J. Opt. Soc. Am. A 1(1) 120-123 (1984)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (11)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved