candela

can·del·a   (kān-děl'ə)    n.   Abbr. cd A unit of luminous intensity equal to 1/60 of the luminous intensity per square centimeter of a blackbody radiating at the temperature of solidification of platinum (2,046°K). Also called candle. See Table at measurement. [Latin candēla, candle; see candle.]

Main Entry: can·de·la
Pronunciation: kan-'dE-l&, -'del-&
Function: noun
: the base unit of luminous intensity in the InternationalSystem of Units that is equal to the luminous intensity in a given direction of a source which emits monochromatic radiation of frequency 540 × 10¹²hertz and has a radiant intensity inthat direction of ¹/₆₈₃ watt per unit solid angle —abbreviation cd; called also candle

candela can·del·a (kān-děl'ə)
n.
Abbr. cd
A unit of measurement of luminous flux, equal to the amount of light given out through a solid angle by a source of one candela radiating equally in all directions. Also called candle.

candela   (kān-děl'ə)  Pronunciation Key  The SI unit used to measure the brightness of a source of light (its luminous intensity). By definition, one square centimeter of a blackbody at the freezing point of platinum emits one-sixtieth of a candela of radiation. See Table at measurement. See also lumen, luminous flux.

candela

unit of luminous intensity in the International System of Units (SI), defined as the luminous intensity in a given direction of a source that emits monochromatic radiation of frequency 540 1012 hertz and has a radiant intensity in that same direction of 1683 watt per steradian (unit solid angle). The candela has replaced the standard candle or lamp as a unit of luminous intensity in calculations involving artificial lighting and is sometimes called the "new candle."

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