| Represents properties specifying the radiance of a thing. Radiance is a physical quantity used in the sphere of radiometry to measure the intensity of a light beam, defined as power per unit solid angle per unit projected area of the source. |
| •owl:Thing |
| •SpatioTemporalThing |
| •Quality |
| •PhysicalQuality |
| •ElectromagneticRadiationRelatedQuantity |
| •Radiance |