radiant efficiency

(redirected from ETAE)
Also found in: Dictionary, Acronyms.

radiant efficiency

[′rād·ē·ənt i′fish·ən·sē]
(optics)
The ratio of the radiant flux emitted by a radiation source to the power consumed by the source.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.