| luminescence |
emission of light from a body when its atoms are excited by means other than raising its temperature. Short-lived luminescence is called fluorescence.
출처: www.johnbarrie.com/glossary.htm
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| luminance |
That part of a video signal relating to the degree of brightness at any given point in the video image. If luminance is high, the picture is bright and if low, the picture is dark. Changing the chrominance does not affect the brightness of the picture.
출처: www.ic.sunysb.edu/Clubs/sbutv/glossary.htm
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| lumina |
Artifact light-producing crystal. Comes in a variety of colors and can only be activated by an adept.
출처: www.savageearth.net/glossary.html
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| luminance |
The physical intensity of light.
출처: graphics.comsci.us/glossary/
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| luminance |
Practically speaking, the brightness of an object, that which the eye perceives; luminance of a surface is equal to illuminance x reflectance (see FOOTLAMBERT)
출처: www.topbulb.com/faq/glossary.asp
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