Wien's distribution law(redirected from Wien approximation)
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Wien's distribution law[′vēnz ‚di·strə′byü·shən ‚lȯ]
A formula for the spectral distribution of radiation from a blackbody, which is a good approximation to the Planck radiation formula at sufficiently low temperatures or wavelengths, for example, in the visible region of the spectrum below 3000 K. Also known as Wien's radiation law.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.