| luminous flux |
Defined as the total luminous energy per unit time emitted by the light source into a sphere(360? surrounding the light source, where the luminous flux is the radiant flux multiplied by the human eyes sensitivity. The measurement unit for luminous flux is the lumen (lm).
출처: www.marktechopto.com/engineering/glossary.cfm
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| luminous intensity |
The amount of luminous flux emitted into a very small solid angle at a defined angular orientation from the light source. The unit of luminous intensity is the lumen/steradian (lm/sr), or candela (cd).
출처: www.marktechopto.com/engineering/glossary.cfm
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| luminous heat |
Heat derived from light. This form may be tolerated better than other forms of radiation. Light may be converted into heat. Short infrared rays penetrate subcutaneous tissues to a greater extent than long invisible rays.
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| luminous ray |
One of the visible rays of the spectrum.
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| luminous f. |
the rate of flow of radiant energy, specifically that of the visible spectrum; its SI unit is the lumen.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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