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Area Lighting / Radiation, quantities and units

IEV ref845-01-49

Symbol
Mp
M

en
photon exitance (at a point of a surface)
quotient of the photon flux dΦp leaving an element of the surface containing the point, by the area dA of that element

Equivalent definition. Integral, taken over the hemisphere visible from the given point, of the expression Lp · cos θ · dΩ, where Lp is the photon radiance at the given point in the various directions of the emitted elementary beams of solid angle dΩ, and θ is the angle between any of these beams and the normal to the surface at the given point

M p = d Φ p dA = 2πsr L p cosθd Ω MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaiqaciWacmGadaGadeaabaGaaqaaaOqaaiaad2eadaWgaaWcbaGaaeiCaaqabaGccqGH9aqpdaWcaaqaaiaabsgacqqHMoGrdaWgaaWcbaGaaeiCaaqabaaakeaacaqGKbGaamyqaaaacqGH9aqpdaWdraqaaiaadYeadaWgaaWcbaGaaeiCaaqabaGccqGHflY1ciGGJbGaai4BaiaacohacqaH4oqCcqGHflY1caqGKbaaleaacaaIYaacdaGae8hWdaNaae4CaiaabkhaaeqaniabgUIiYdGccqqHPoWvaaa@52A8@

unit: s-1 · m-2


fr
exitance photonique (en un point d'une surface) f
quotient du flux photonique dΦp quittant un élément de la surface contenant le point, par l'aire dA de cet élément

Définition équivalente. Intégrale, étendue à l'hémisphère visible depuis le point donné, de l'expression Lp • cos θ · dΩ, оù Lp est la luminance photonique au point donné dans les diverses directions des faisceaux élémentaires émis d'angle solide dΩ, et θ est l'angle entre chacun de ces faisceaux et la normale à la surface au point donné

M p = d Φ p dA = 2πsr L p cosθd Ω MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaiqaciWacmGadaGadeaabaGaaqaaaOqaaiaad2eadaWgaaWcbaGaaeiCaaqabaGccqGH9aqpdaWcaaqaaiaabsgacqqHMoGrdaWgaaWcbaGaaeiCaaqabaaakeaacaqGKbGaamyqaaaacqGH9aqpdaWdraqaaiaadYeadaWgaaWcbaGaaeiCaaqabaGccqGHflY1ciGGJbGaai4BaiaacohacqaH4oqCcqGHflY1caqGKbaaleaacaaIYaacdaGae8hWdaNaae4CaiaabkhaaeqaniabgUIiYdGccqqHPoWvaaa@52A8@

unité: s-1 · m-2


ar
مخرج فوتون (عند نقطة لسطح)

de
spezifische Photonenausstrahlung (von einem Punkt einer Oberfläche), f

es
exitancia fotónica

fi
fotonieksitanssi

it
emettenza fotonica

ko
광자 발산도, 표면 한 점

ja
光子発散度

no
nb fotoneksitans

nn fotoneksitans

pl
egzytancja fotonowa (w danym punkcie powierzchni)

pt
emitância fotónica (num ponto de uma superfície)

sr
емисивност фотона , <у тачки површине> ж јд
специфично исијавање фотона , с јд

sv
fotonexitans

Publication date: 1987
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