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luminance
[ loo-muh-nuhns ]
noun
- the state or quality of being luminous.
- Also called luminosity. the quality or condition of radiating or reflecting light:
the blinding luminance of the sun.
- Optics. the quantitative measure of brightness of a light source or an illuminated surface, equal to luminous flux per unit solid angle emitted per unit projected area of the source or surface.
luminance
/ ˈluːmɪnəns /
noun
- a state or quality of radiating or reflecting light
- a measure (in candelas per square metre) of the brightness of a point on a surface that is radiating or reflecting light. It is the luminous intensity in a given direction of a small element of surface area divided by the orthogonal projection of this area onto a plane at right angles to the direction L
luminance
/ lo̅o̅′mə-nəns /
- The luminous intensity of a light source per unit area. Occasionally the lambert unit is used to measure luminance.
- Also called photometric brightness
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Word History and Origins
Origin of luminance1
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Word History and Origins
Origin of luminance1
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Example Sentences
The TV also gets up to 700 nits peak brightness, creating greater luminance and contrast—even in bright rooms.
That meant you’d be spending all night in the lab trying, through trial and error, to find a pattern in a cell’s responses by playing with the location, size, or luminance of the spot.
A few fluoros cast wan puddles of luminance on the plastic flooring.
Still the whole machine is clear-cut to the smallest wire in their all-exposing luminance.
The remainder of the big room receded into a grey twilight encircling the patch of luminance.
A luminance seemed to come from above, from the unseen heights of the magnificent double staircase.
The silhouette disappeared, and, shortly afterwards, the gray luminance.
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