| NOUN | quantity | luminance unit | a measure of luminance |
|---|
| Meaning | A measure of luminance. | |
|---|---|---|
| Narrower | foot-lambert, ft-L | A former luminance unit equal to one lumen per square foot |
| nit | A luminance unit equal to 1 candle per square meter measured perpendicular to the rays from the source | |
| Broader | light unit | A measure of the visible electromagnetic radiation |
| Spanish | unidad luminosa | |
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