luminance unit

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Related to luminance unit: Cd/m, Cd/m², Cd/m2, Candela per square meter
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Noun1.luminance unit - a measure of luminance
light unit - a measure of the visible electromagnetic radiation
nit - a luminance unit equal to 1 candle per square meter measured perpendicular to the rays from the source
foot-lambert, ft-L - a former luminance unit equal to one lumen per square foot
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References in periodicals archive ?
Typically 11 target stimuli were used in each range, increasing in steps of 0.05 log luminance units. Note that when the log luminance of the target relative to the surround was 0.0 there was no luminance contrast between the target and surround.
The Color Calculator also transforms data between various color models, such as CIE xy, uv, and u'v', and converts between most illuminance and luminance units. The software contains mathematical definitions for important photometric quantities, such as luminance, illuminance, luminous flux, and luminous intensity.