illumination unit
English Thesaurus
1. a measure of illumination (noun.quantity)
| hypernym | : | light unit, |
| definition | : | a measure of the visible electromagnetic radiation (noun.quantity) |
| hyponym | : | footcandle, |
| definition | : | a unit of illuminance on a surface that is everywhere 1 foot from a point source of 1 candle (noun.quantity) |
| hyponym | : | l, lambert, |
| definition | : | a cgs unit of illumination equal to the brightness of a perfectly diffusing surface that emits or reflects one lumen per square centimeter (noun.quantity) |
| hyponym | : | lux, lx, |
| definition | : | a unit of illumination equal to 1 lumen per square meter; 0.0929 foot candle (noun.quantity) |
| hyponym | : | phot, |
| definition | : | a unit of illumination equal to 1 lumen per square centimeter; 10,000 phots equal 1 lux (noun.quantity) |
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