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Area Lighting / Radiation, quantities and units

IEV ref845-01-36

Symbol
Lp
L

en
photon radiance (in a given direction, at a given point of a real or imaginary surface)
quantity defined by the formula L p = d Φ p dAcosθdΩ MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaiqaciWacmGadaGadeaabaGaaqaaaOqaaiaadYeadaWgaaWcbaGaaeiCaaqabaGccqGH9aqpdaWcaaqaaiaabsgacqqHMoGrdaWgaaWcbaGaaeiCaaqabaaakeaacaqGKbGaamyqaiabgwSixlGacogacaGGVbGaai4CaiabeI7aXjabgwSixlaabsgacqqHPoWvaaaaaa@4929@ where dΦp is the photon flux transmitted by an elementary beam passing through the given point and propagating in the solid angle dΩ containing the given direction; dA is the area of a section of that beam containing the given point; θ is the angle between the normal to that section and the direction of the beam

unit : s-1 • m-2 • sr-1

NOTE – See notes 1 to 5 to 845-01-34.


fr
luminance photonique (dans une direction donnée, en un point donné d'une surface réelle ou fictive) f
grandeur définie par la formule L p = d Φ p dAcosθdΩ MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaiqaciWacmGadaGadeaabaGaaqaaaOqaaiaadYeadaWgaaWcbaGaaeiCaaqabaGccqGH9aqpdaWcaaqaaiaabsgacqqHMoGrdaWgaaWcbaGaaeiCaaqabaaakeaacaqGKbGaamyqaiabgwSixlGacogacaGGVbGaai4CaiabeI7aXjabgwSixlaabsgacqqHPoWvaaaaaa@4929@ où dΦp est le flux photonique transmis par un faisceau élémentaire passant par le point donné et se propageant dans l'angle solide dΩ contenant la direction donnée; dA est l'aire d'une section de ce faisceau au point donné; θ est l'angle entre la normale à cette section et la direction du faisceau

unité: s-1 • m-2 • sr-1

NOTE – Voir les notes 1 à 5 à 845-01-34.


ar
إشعاعية فوتونات (فى إتجاه معين عند نقطة معينة لسطح حقيقى أوتخيلى)

de
Photonenstrahldichte (in einer gegebenen Richtung, in einem gegebenen Punkt einer realen oder imaginären Oberfläche), f

es
radiancia fotónica

fi
fotoniradianssi

it
radianza fotonica

ko
광자 복사, 주어진 방향에서
광자 휘도

ja
光子輝度

no
nb fotonradians

nn fotonradians

pl
luminancja fotonowa

pt
radiância fotónica (numa dada direcção num dado ponto de uma superfície real ou fictícia)

sr
сјај фотона , <у датом правцу и датој тачки стварне или замишљене површине> м јд
густина фотона , ж јд

sv
fotonradians

Publication date: 1987
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