@prefix isq: .
@prefix smart: .
@prefix rdf: .
@prefix dcterms: .
@prefix skos: .
a isq:Entry ;
rdf:type isq:Quantity ;
rdf:type smart:TermEntry ;
dcterms:identifier "7-17" ;
skosxl:prefLabel "luminous exitance"@en ;
skosxl:altLabel "M_\"v\""@en ;
skosxl:altLabel "(M)"@en ;
skos:definition "density of exiting luminous flux with respect to area at a point on a real or imaginary surface, expressed by\n\n[stem%unnumbered]\n++++\nM_\"v\" = (\"d\"Phi_\"v\")/(\"d\"A)\n++++\n\nwhere stem:[Phi_\"v\"] is luminous flux (<>) and stem:[A] is the area (<>) from which the luminous flux leaves\n"@en ;
smart:hasBindingnessType "bindingness-type:normative" ;
dcterms:isPartOf ;
isq:hasUnit [
skos:notation "lm/m^2" ;
skosxl:prefLabel "lumen per square metre"@en
] ;
isq:hasUnit [
skos:notation "cd*sr*m^(-2)" ;
skosxl:prefLabel "candela steradian per square metre"@en
] ;
skos:note "Luminous exitance can be derived from the spectral radiant exitance distribution by\n\n[stem%unnumbered]\n++++\nM_\"v\" = K_\"m\" int_0^(oo) M_(\"e\",lambda)(lambda)V(lambda)\"d\"lambda\n++++\n\nwhere stem:[K_\"m\"] is maximum luminous efficacy (<>), stem:[M_(\"e\",lambda)(lambda)] is the spectral radiant exitance (<>) at wavelength stem:[lambda] (<>), and stem:[V(lambda)] is spectral luminous efficiency (<>).\n\nIntegral limits can be confined depending on the spectral sensitivity of the detectors used as a sensor.\n\nThe corresponding radiometric quantity is \"radiant exitance\" (<>). The corresponding quantity for photons is \"photon exitance\" (<>).\n"@en ;
iso:urn .