quantitykind:Radiance

PredicateObject
rdf:type qudt:QuantityKind
dcterms:description "Radiance" is a radiometric measure that describes the amount of light that passes through or is emitted from a particular area, and falls within a given solid angle in a specified direction.
qudt:applicableUnit unit:W-PER-M2-SR
qudt:hasDimensionVector qkdv:A0E0L0I0M1H0T-3D0
qudt:iec61360Code “0112/2///62720#UAD148”
qudt:informativeReference
qudt:latexDefinition \(L = \frac{dI}{dA}\frac{1}{cos\alpha}\), where \(dI\) is the radiant intensity emitted from an element of the surface area \(dA\), and angle \(\alpha\) is the angle between the normal to the surface and the given direction.
qudt:plainTextDescription “"Radiance" is a radiometric measure that describes the amount of light that passes through or is emitted from a particular area, and falls within a given solid angle in a specified direction.”
qudt:siExactMatch si-quantity:RADI
qudt:symbol “L”
qudt:wikidataMatch http://www.wikidata.org/entity/Q1411145
rdfs:comment “Applicable units are those of quantitykind:Radiance”
rdfs:isDefinedBy http://qudt.org/3.1.10/vocab/quantitykind
rdfs:label “Radiance”@en
skos:broader quantitykind:PowerPerAreaAngle
Generated 2026-01-15T09:03:10.866-05:00