Encyclopedia

photometry

photometry (fōtom'utrē) [key], branch of physics dealing with the measurement of the intensity of a source of light, such as an electric lamp, and with the intensity of light such a source may cast on a surface area.

Sections in this article:

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved.

More on photometry from Fact Monster:

See more Encyclopedia articles on: Physics