|
|
 |
|
|
|
|
| lu·mi·nance [ lmənənss ] |
noun |
|
| Definition: |
| |
1. quality of being luminous: the condition or quality of emitting or reflecting light.
Symbol L
|
2. measure of brightness: a measure of the brightness of a surface, equal to the amount of luminous flux arriving at, passing through, or leaving a unit area of surface. It is measured in candelas per square meter.
|
| [Late 19th century. <luminant "luminous" < Latin luminant-, present participle of luminare "illuminate" < lumin- "light"] |
|
|
|
