standard illuminant C
E1512307
UNEXPLORED
Standard illuminant C is a CIE-defined reference light source representing average daylight with a correlated color temperature of about 6774 K, used primarily for colorimetry and color matching applications.
All labels observed (1)
| Label | Occurrences |
|---|---|
| standard illuminant C canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T21990431 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: standard illuminant C Context triple: [CIE Publication 15, concerns, standard illuminant C]
-
A.
CIE standard illuminant D65
CIE standard illuminant D65 is a standardized representation of average daylight with a correlated color temperature of about 6500 K, widely used as a reference white point in colorimetry and imaging systems.
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B.
CIE standard illuminant D50
CIE standard illuminant D50 is a standardized light source representing average midday daylight with a correlated color temperature of about 5000 K, commonly used as a reference for color-critical applications such as printing and graphic arts.
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C.
CIE standard illuminant D75
CIE standard illuminant D75 is a defined daylight illuminant with a correlated color temperature of about 7500 K, representing cool, overcast daylight conditions for colorimetry and imaging applications.
-
D.
CIE 1931 XYZ
CIE 1931 XYZ is a foundational color space defined by the CIE that models human color perception using three tristimulus values (X, Y, Z) and underpins much of modern color science and colorimetry.
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E.
candela
The candela is the SI base unit of luminous intensity, used to quantify the perceived power of light emitted by a source in a given direction.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: standard illuminant C Target entity description: Standard illuminant C is a CIE-defined reference light source representing average daylight with a correlated color temperature of about 6774 K, used primarily for colorimetry and color matching applications.
-
A.
CIE standard illuminant D65
CIE standard illuminant D65 is a standardized representation of average daylight with a correlated color temperature of about 6500 K, widely used as a reference white point in colorimetry and imaging systems.
-
B.
CIE standard illuminant D50
CIE standard illuminant D50 is a standardized light source representing average midday daylight with a correlated color temperature of about 5000 K, commonly used as a reference for color-critical applications such as printing and graphic arts.
-
C.
CIE standard illuminant D75
CIE standard illuminant D75 is a defined daylight illuminant with a correlated color temperature of about 7500 K, representing cool, overcast daylight conditions for colorimetry and imaging applications.
-
D.
CIE 1931 XYZ
CIE 1931 XYZ is a foundational color space defined by the CIE that models human color perception using three tristimulus values (X, Y, Z) and underpins much of modern color science and colorimetry.
-
E.
candela
The candela is the SI base unit of luminous intensity, used to quantify the perceived power of light emitted by a source in a given direction.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.