
Relating to the properties of light received on a surface.
The measure of the rate at which light energy is received by a receptor of unit surface area is called illuminance. The unit of measurement is lux lumens per square metre, where lumen is the unit of flux (rate of energy flow).
The National Film and Sound Archive of Australia acknowledges Australia’s Aboriginal and Torres Strait Islander peoples as the Traditional Custodians of the land on which we work and live and gives respect to their Elders both past and present.