 |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| • HOME • ABOUT • CATEGORIES • USE OF TEXT AND IMAGES • NEWSLETTER   
|
luminance
In photometry, the brightness of an extended surface. In SI units luminance is measured in candelas per square meter but older units include the apostilb, the lambert, and the stilb (equal to 1 candela per square centimeter).
Related categories
• OPTICS AND OPTICAL PHENOMENAAlso on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History