Standard illuminant - Wikipedia
网页A standard illuminant is a theoretical source of visible light with a spectral power distribution that is published. Standard illuminants provide a basis for comparing images or colors recorded under different lighting.
Illuminant Definition & Meaning - Merriam-Webster
网页: an illuminating device or substance. Synonyms. beacon. lamp. light. See all Synonyms & Antonyms in Thesaurus. Examples of illuminant in a Sentence. at the time, a spermaceti candle was the brightest indoor illuminant available.
Illuminant - an overview | ScienceDirect Topics
网页Illuminant refers to theoretical data on relative energy at each of visible wavelength as well as at near-UV range. The SPD of a physical or real light source depends on several factors and varies widely.
Understanding Illuminants - X-Rite
网页An illuminant is a mathematical representation of a theoretical light source, used for calculating tristimulus values from a spectrophotometric measurement. The numbers represent relative power of the theoretical source for specific wavelengths in …
CIE Standard Illuminants and Sources | SpringerLink
网页2015年1月1日 · Overview. As shown already in the section Definitions, one has to distinguish between illuminants and sources: The term “illuminant” refers to a defined spectral power distribution, not necessarily realizable or provided by an artificial source.
CIE standard illuminants - RP Photonics
网页CIE has defined rules for calculating the chromaticity coordinates of illuminant D for different color temperatures. A particularly important version, used as a standard in various circumstances, is illuminant D65 with a correlated color temperature of 6504 K.
Standard Illuminants - SpringerLink
网页2016年1月1日 · A standard illuminant, as defined by the International Commission on Illumination (Commission International de L'Eclairage, abbreviated as the CIE), denotes a specific relative distribution of energy (“spectral power distribution”) for an illuminant, over the range 300–830 nm .
White point - Wikipedia
网页Illuminant and white point are separate concepts. For a given illuminant, its white point is uniquely defined. A given white point, on the other hand, generally does not uniquely correspond to only one illuminant.
Spectral Power Distribution - SpringerLink
网页2015年1月1日 · Spectral power distribution is a function of wavelength and describes the amount of optical radiation within a particular range of a spectrum [1 – 4]. SPD is used to describe not only light sources but also illuminants. The difference between light source and illuminant is that a light source is an actual physical entity, whereas an ...
网页Illuminant vs. Source Also important to understanding illuminants is the difference between an illuminant and a source. As described by Billmeyer and Saltzman, a source is an actual physical light, something that can actually be turned on to illuminate something. An illuminant however, is a
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