Science glossary film: Luminance

Luminance

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A measure of the amount of light emitted from or passing through a given area.

A measure of the amount of light emitted from or passing through a given area. This is perceived by us as the brightness of an object - the same amount of light emitted by a small object appears much brighter to our eyes than if it comes from a larger object. The smaller object has a higher luminance.

This is perceived by us as the brightness of an object - the same amount of light emitted by a small object appears much brighter to our eyes than if it comes from a larger object. The smaller object has a higher luminance.

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