candela
E625463
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.
All labels observed (2)
| Label | Occurrences |
|---|---|
| candela canonical | 1 |
| candle (pre-SI unit) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6877334 — 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: candela Context triple: [ampere, isBaseUnitAlongWith, candela]
-
A.
Lumière
Lumière is the charismatic, anthropomorphic candelabra from Disney's "Beauty and the Beast," known for his show-stopping musical number "Be Our Guest."
-
B.
Licht
Licht is Karlheinz Stockhausen’s monumental seven-opera cycle, each part associated with a day of the week and combining music, theater, and spirituality into one of the most ambitious works of 20th-century avant-garde music.
-
C.
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.
-
D.
Lampa
Lampa is a commune and town in central Chile known for its semi-rural character and growing residential and industrial development near Santiago.
-
E.
Abajur
Abajur is a conceptual artwork by Brazilian artist Cildo Meireles, known for its exploration of perception, space, and political or social commentary through immersive, often installation-based forms.
- 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: candela Target entity description: 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.
-
A.
Lumière
Lumière is the charismatic, anthropomorphic candelabra from Disney's "Beauty and the Beast," known for his show-stopping musical number "Be Our Guest."
-
B.
Licht
Licht is Karlheinz Stockhausen’s monumental seven-opera cycle, each part associated with a day of the week and combining music, theater, and spirituality into one of the most ambitious works of 20th-century avant-garde music.
-
C.
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.
-
D.
Lampa
Lampa is a commune and town in central Chile known for its semi-rural character and growing residential and industrial development near Santiago.
-
E.
Abajur
Abajur is a conceptual artwork by Brazilian artist Cildo Meireles, known for its exploration of perception, space, and political or social commentary through immersive, often installation-based forms.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
SI base unit
ⓘ
coherent SI unit ⓘ unit of luminous intensity ⓘ |
| baseQuantity | luminous intensity ⓘ |
| baseUnitIn | SI photometric units ⓘ |
| baseUnitNumber | 7 ⓘ |
| belongsToSystem |
International System of Units
ⓘ
SI ⓘ |
| definedByBody |
BIPM
ⓘ
linked to:
International Bureau of Weights and Measures
CGPM ⓘ
linked to:
General Conference on Weights and Measures
|
| definedUsing |
luminous efficacy of monochromatic radiation of frequency 540×10^12 hertz
ⓘ
radiant intensity ⓘ steradian ⓘ watt per steradian ⓘ |
| definedUsingConstant | K_cd ⓘ |
| definitionEpoch | 2018 SI redefinition ⓘ |
| dependsOnHumanVisionModel | photopic luminous efficiency function V(λ) ⓘ |
| dimensionSymbol | J ⓘ |
| hasPhysicalInterpretation | perceived power of light emitted in a given direction ⓘ |
| hasUnitClass | photometric unit ⓘ |
| isBaseForDerivedUnit |
candela per square metre
ⓘ
illuminance ⓘ lumen ⓘ luminance ⓘ luminous flux ⓘ lux ⓘ |
| isBaseUnitFor | photometry ⓘ |
| isDirectionalQuantity | true ⓘ |
| isNotRadiometric | true ⓘ |
| isOneOfSevenBaseUnits | true ⓘ |
| isPerceivedQuantity | true ⓘ |
| isScalarQuantity | true ⓘ |
| previousDefinitionEpoch | 1979 CGPM definition ⓘ |
| quantityMeasured | luminous intensity ⓘ |
| relatedUnit |
candela per square metre
ⓘ
lumen ⓘ lux ⓘ nit ⓘ |
| replacedUnit |
candle (pre-SI unit)
ⓘ
linked to:
candela
|
| symbol | cd ⓘ |
| usedInField |
display technology
ⓘ
illumination design ⓘ lighting engineering ⓘ optics ⓘ photometry ⓘ vision science ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: candela Description of subject: 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.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Ampère (unit of electric current)
linked to: candela