unit:LM

URI: http://qudt.org/vocab/unit/LM

Type
Description

The SI unit for measuring the flux of light being produced by a light source or received by a surface. The intensity of a light source is measured in candelas. One lumen represents the total flux of light emitted, equal to the intensity in candelas multiplied by the solid angle in steradians into which the light is emitted. A full sphere has a solid angle of \(4\cdot\pi\) steradians. A light source that uniformly radiates one candela in all directions has a total luminous flux of \(1 cd\cdot 4 \pi sr = 4 \pi cd \cdot sr \approx 12.57 \; \text{lumens}\). "Lumen" is a Latin word for light.

Properties
qudt:iec61360Code
0112/2///62720#UAA718
Annotations
dcterms:description
The SI unit for measuring the flux of light being produced by a light source or received by a surface. The intensity of a light source is measured in candelas. One lumen represents the total flux of light emitted, equal to the intensity in candelas multiplied by the solid angle in steradians into which the light is emitted. A full sphere has a solid angle of \(4\cdot\pi\) steradians. A light source that uniformly radiates one candela in all directions has a total luminous flux of \(1 cd\cdot 4 \pi sr = 4 \pi cd \cdot sr \approx 12.57 \; \text{lumens}\). "Lumen" is a Latin word for light.
rdfs:label
lumen(en)
View as:  CSV

Work in progress

RDF/XML
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    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:j.0="http://qudt.org/schema/qudt/"
    xmlns:j.1="http://purl.org/dc/terms/"
    xmlns:owl="http://www.w3.org/2002/07/owl#"
    xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > 
  <rdf:Description rdf:about="http://qudt.org/vocab/unit/LM">
    <rdfs:isDefinedBy rdf:resource="http://qudt.org/2.1/vocab/unit"/>
    <j.0:definedUnitOfSystem rdf:resource="http://qudt.org/vocab/sou/SI"/>
    <j.0:informativeReference rdf:datatype="http://www.w3.org/2001/XMLSchema#anyURI">http://en.wikipedia.org/wiki/Lumen?oldid=492885414</j.0:informativeReference>
    <rdf:type rdf:resource="http://qudt.org/schema/qudt/DerivedUnit"/>
    <j.0:siUnitsExpression>cd.sr</j.0:siUnitsExpression>
    <j.0:symbol>lm</j.0:symbol>
    <j.0:ucumCode rdf:datatype="http://qudt.org/schema/qudt/UCUMcs">lm</j.0:ucumCode>
    <j.0:conversionMultiplier rdf:datatype="http://www.w3.org/2001/XMLSchema#decimal">1.0</j.0:conversionMultiplier>
    <j.1:description rdf:datatype="http://qudt.org/schema/qudt/LatexString">The SI unit for measuring the flux of light being produced by a light source or received by a surface. The intensity of a light source is measured in candelas. One lumen represents the total flux of light emitted, equal to the intensity in candelas multiplied by the solid angle in steradians into which the light is emitted. A full sphere has a solid angle of \(4\cdot\pi\) steradians. A light source that uniformly radiates one candela in all directions has a total luminous flux of \(1 cd\cdot 4 \pi sr = 4 \pi cd \cdot sr \approx 12.57 \; \text{lumens}\). "Lumen" is a Latin word for light.</j.1:description>
    <j.0:derivedCoherentUnitOfSystem rdf:resource="http://qudt.org/vocab/sou/SI"/>
    <j.0:hasQuantityKind rdf:resource="http://qudt.org/vocab/quantitykind/LuminousFlux"/>
    <j.0:dbpediaMatch rdf:datatype="http://www.w3.org/2001/XMLSchema#anyURI">http://dbpedia.org/resource/Lumen</j.0:dbpediaMatch>
    <j.0:uneceCommonCode>LUM</j.0:uneceCommonCode>
    <rdf:type rdf:resource="http://qudt.org/schema/qudt/Unit"/>
    <j.0:iec61360Code>0112/2///62720#UAA718</j.0:iec61360Code>
    <j.0:omUnit rdf:resource="http://www.ontology-of-units-of-measure.org/resource/om-2/lumen"/>
    <rdfs:label xml:lang="en">lumen</rdfs:label>
  </rdf:Description>
</rdf:RDF>
TURTLE
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<http://qudt.org/vocab/unit/LM>
  rdf:type <http://qudt.org/schema/qudt/DerivedUnit> ;
  rdf:type <http://qudt.org/schema/qudt/Unit> ;
  <http://purl.org/dc/terms/description> "The SI unit for measuring the flux of light being produced by a light source or received by a surface. The intensity of a light source is measured in candelas. One lumen represents the total flux of light emitted, equal to the intensity in candelas multiplied by the solid angle in steradians into which the light is emitted. A full sphere has a solid angle of \\(4\\cdot\\pi\\) steradians. A light source that uniformly radiates one candela in all directions has a total luminous flux of \\(1 cd\\cdot 4 \\pi sr = 4 \\pi cd \\cdot sr \\approx 12.57 \\; \\text{lumens}\\). \"Lumen\" is a Latin word for light."^^<http://qudt.org/schema/qudt/LatexString> ;
  <http://qudt.org/schema/qudt/conversionMultiplier> 1.0 ;
  <http://qudt.org/schema/qudt/dbpediaMatch> "http://dbpedia.org/resource/Lumen"^^xsd:anyURI ;
  <http://qudt.org/schema/qudt/definedUnitOfSystem> <http://qudt.org/vocab/sou/SI> ;
  <http://qudt.org/schema/qudt/derivedCoherentUnitOfSystem> <http://qudt.org/vocab/sou/SI> ;
  <http://qudt.org/schema/qudt/hasQuantityKind> <http://qudt.org/vocab/quantitykind/LuminousFlux> ;
  <http://qudt.org/schema/qudt/iec61360Code> "0112/2///62720#UAA718" ;
  <http://qudt.org/schema/qudt/informativeReference> "http://en.wikipedia.org/wiki/Lumen?oldid=492885414"^^xsd:anyURI ;
  <http://qudt.org/schema/qudt/omUnit> <http://www.ontology-of-units-of-measure.org/resource/om-2/lumen> ;
  <http://qudt.org/schema/qudt/siUnitsExpression> "cd.sr" ;
  <http://qudt.org/schema/qudt/symbol> "lm" ;
  <http://qudt.org/schema/qudt/ucumCode> "lm"^^<http://qudt.org/schema/qudt/UCUMcs> ;
  <http://qudt.org/schema/qudt/uneceCommonCode> "LUM" ;
  rdfs:isDefinedBy <http://qudt.org/2.1/vocab/unit> ;
  rdfs:label "lumen"@en ;
.
JSON
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 ,"qname":"unit:LM" 
 ,"uri":"http:\/\/qudt.org\/vocab\/unit\/LM" 
 ,"properties":["conversion multiplier":"1.0" 
    ,"dbpedia match":"http:\/\/dbpedia.org\/resource\/Lumen" 
    ,"defined unit of system":"sou:SI" 
    ,"description":"The SI unit for measuring the flux of light being produced by a light source or received by a surface. The intensity of a light source is measured in candelas. One lumen represents the total flux of light emitted, equal to the intensity in candelas multiplied by the solid angle in steradians into which the light is emitted. A full sphere has a solid angle of \\(4\\cdot\\pi\\) steradians. A light source that uniformly radiates one candela in all directions has a total luminous flux of \\(1 cd\\cdot 4 \\pi sr = 4 \\pi cd \\cdot sr \\approx 12.57 \\; \\text{lumens}\\). \"Lumen\" is a Latin word for light." 
    ,"has quantity kind":"quantitykind:LuminousFlux" 
    ,"iec-61360 code":"0112\/2\/\/\/62720#UAA718" 
    ,"informative reference":"http:\/\/en.wikipedia.org\/wiki\/Lumen?oldid=492885414" 
    ,"is coherent derived unit of system":"sou:SI" 
    ,"isDefinedBy":"&lt;http:\/\/qudt.org\/2.1\/vocab\/unit&gt;" 
    ,"label":"lumen" 
    ,"om unit":"&lt;http:\/\/www.ontology-of-units-of-measure.org\/resource\/om-2\/lumen&gt;" 
    ,"si units expression":"cd.sr" 
    ,"symbol":"lm" 
    ,"type":"qudt:DerivedUnit" 
    ,"type":"qudt:Unit" 
    ,"ucum code":"lm" 
    ,"unece common code":"LUM" 
    ]}
JSON-LD
{
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  "description" : "The SI unit for measuring the flux of light being produced by a light source or received by a surface. The intensity of a light source is measured in candelas. One lumen represents the total flux of light emitted, equal to the intensity in candelas multiplied by the solid angle in steradians into which the light is emitted. A full sphere has a solid angle of \\(4\\cdot\\pi\\) steradians. A light source that uniformly radiates one candela in all directions has a total luminous flux of \\(1 cd\\cdot 4 \\pi sr = 4 \\pi cd \\cdot sr \\approx 12.57 \\; \\text{lumens}\\). \"Lumen\" is a Latin word for light.",
  "conversionMultiplier" : "1.0",
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  "iec61360Code" : "0112/2///62720#UAA718",
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  "label" : {
    "@language" : "en",
    "@value" : "lumen"
  },
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}

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