Difference between revisions of "Luminous Efficiency"
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Luminous Efficiency
</dt>
For a given wavelength of visible
radiation, the ratio of the flux
that is effectively sensed by the human eye to the flux that
is intrinsic in the radiation.
It may be represented as a dimensionless ratio, e.g., lumens
per watt. Also called luminosity.
</dd>
Thus, luminous efficiency is a weighting factor which
is applied to radiation quantities so that they are related physiologically
to the response of the human eye, which varies as a function
of wavelength. All quantities which are weighted in this manner
should be modified by the term luminous (e.g., luminous emittance,
luminous flux, etc.) [[/a>|/a>
]]
References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use
