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Definition of Luminance
1. Noun. The quality of being luminous; emitting or reflecting light. "Its luminosity is measured relative to that of our sun"
Generic synonyms: Physical Property
Specialized synonyms: Illuminance, Illumination, Incandescence, Glow, Luminescence
Attributes: Bright, Dull
Derivative terms: Bright, Bright, Bright, Light, Luminous, Bright
Definition of Luminance
1. Noun. the quality of being luminous ¹
2. Noun. the luminous flux emitted in a given direction divided by the product of the projected area of the source element perpendicular to the direction and the solid angle containing that direction, i.e. luminous intensity divided by unit area; measured in stilbs or apostilbs ¹
¹ Source: wiktionary.com
Definition of Luminance
1. [n -S]
Medical Definition of Luminance
1. The brightness of an object, expressed as the luminous flux per unit solid angle per unit projected area, measured in lamberts or in candelas per square meter. Origin: L. Lumino, to light up, fr. Lumen, light (05 Mar 2000)
Lexicographical Neighbors of Luminance
Literary usage of Luminance
Below you will find example usage of this term as found in modern and/or classical literature:
1. Light's Labour's Lost: Policies for Energy-Efficient Lighting by Paul Waide, Satoshi Tanishima, International Energy Agency (2006)
"... IN THE EYE OF THE BEHOLDER: HUMAN FACTORS IN LIGHTING Figure 2.3 Relative
visual performance as a function of luminance and contrast Source: Boyce, ..."
2. The Well-Being of Video Display Terminal Users: An Exploratory Study by Mark S Gottlieb, Steven L Sauter, Vernon M Dodson, Kathryn M Rohrer (1999)
"Reduced background luminance is strongly associated with increased presence of
... (1981) reported a correlation of glare luminance with VDT user annoyance, ..."
3. HVAC and Chemical Resistance Handbook for the Engineer and Architect: A ...by Tom Arimes by Tom Arimes (1994)
"Objectively it is referred to as luminance, defined as intensity in a given ...
luminance is usually referred to in one of two ways, either pertaining to a ..."
4. Protection of Chemical and Water Infrastructure: Federal Requirements ...by William O. Jenkins, Jr. by William O. Jenkins, Jr. (2005)
"Exitance, luminance, and Brightness - Properties describing how light is ...
luminance is a very important concept in lighting, since luminance Is what we ..."
5. Copyright Licensing Regimes Covering Retransmissioon of Broadcast Signals edited by Howard Coble (2001)
"2 Common features 2.1 General viewing condition» The assessors' viewing conditions
should be arranged as follows: a) Ratio of luminance of inactive screen ..."
6. Quality Determinants Of Mammography: Clinical Practice Guideline by Lawrence W. Bassett, R. Edward Hendrick (2004)
"One study indicates that viewbox luminance varies widely at mammographie ...
at a luminance higher than that used for conventional radiographie films ..."
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