Abstract

Methods by which the correlated color temperature and the distribution temperature of a light source may be calculated from a knowledge of the spectral power distribution of the source are described. Digital-computer programs have been written to perform the calculations; these programs are described, with the results of some tests for a number of sources. The two temperatures are significantly different for some sources. A new concept, “daylight distribution temperature” is also introduced and some examples are given.

© 1968 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Accurate method for computing correlated color temperature

Changjun Li, Guihua Cui, Manuel Melgosa, Xiukai Ruan, Yaoju Zhang, Long Ma, Kaida Xiao, and M. Ronnier Luo
Opt. Express 24(13) 14066-14078 (2016)

Calculating correlated color temperatures across the entire gamut of daylight and skylight chromaticities

Javier Hernández-Andrés, Raymond L. Lee, and Javier Romero
Appl. Opt. 38(27) 5703-5709 (1999)

Color-Rendering Capability of Commercial Lamps

W. A. Thornton
Appl. Opt. 11(5) 1078-1086 (1972)

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 (1)

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

Tables (9)

You do not have subscription access to this journal. Article tables 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 (33)

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