Viewing topic: Lumen

See sub-topics for Lumen ... >> General Science Terminology >> Scientific Units >> Lumen

Highest Rated Sign

No video has been submitted for this term

Nobody has posted a sign yet.

Lumen

  • Definition: The lumen (symbol: lm) is the SI derived unit of luminous flux, a measure of the total "amount" of visible light emitted by a source. Luminous flux differs from power (radiant flux) in that luminous flux measurements reflect the varying sensitivity of the human eye to different wavelengths of light, while radiant flux measurements indicate the total power of all light emitted, independent of the eye's ability to perceive it.

    Source: http://en.wikipedia.org/wiki/Lumen_(unit)

  • There are no comments for this topic.