Irradiance

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irradiance

[i′rād·ē·əns]
(electromagnetism)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

Irradiance

The amount or density of light energy incident on a surface.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Irradiance

 

(at a point of a surface), the ratio of the radiant flux incident upon a small surface element containing the point being considered to the area of the surface element. In meteorology and actinometry, this quantity is also called radiation intensity. Units of irradiance are watts per square meter and calories per square centimeter per minute.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

irradiance

The density of the luminous flux which is incident on a surface.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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