Abstract

With a modified step-by-step brightness-matching procedure, a series of colors, with dominant wavelengths from 400 to 670 nm, was adjusted so that the saturations and brightnesses of the colors appeared equal to those of the reference, which was a mixture of 570-nm and white light. The results show that equally bright and equally saturated colors are not equal in luminance. We also report a saturation function of spectral lights derived by utilizing these equally bright and equally saturated colors. Finally, our equally saturated colors do not plot as a circle in the 1976 CIE u′, v′ space, which indicates some limitations of this uniform chromaticity diagram.

© 1982 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Brightness of equal-luminance lights

Stephen A. Burns, Vivianne C. Smith, Joel Pokorny, and Ann E. Elsner
J. Opt. Soc. Am. 72(9) 1225-1231 (1982)

Brightness, not luminance, determines transition from the surface-color to the aperture-color mode for colored lights

Keiji Uchikawa, Kowa Koida, Toshihisa Meguro, Yasuki Yamauchi, and Ichiro Kuriki
J. Opt. Soc. Am. A 18(4) 737-746 (2001)

Luminous-efficiency functions for point sources

M. Ikeda, H. Yaguchi, K. Yoshimatsu, and M. Ohmi
J. Opt. Soc. Am. 72(1) 68-73 (1982)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

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

Figures (11)

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

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

Equations (1)

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

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