luminous emittance


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Related to luminous emittance: luminous exitance

luminous emittance

[′lü·mə·nəs i′mit·əns]
(optics)
The emittance of visible radiation weighted to take into account the different response of the human eye to different wavelengths of light; in photometry, luminous emittance is always used as a property of a self-luminous source, and therefore should be distinguished from luminance. Also known as luminous exitance.
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