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Area Lighting / Emission, optical properties of materials

IEV ref845-04-97

Symbol
R'

en
coefficient of retroreflection (of a plane retroreflecting surface)
quotient of the coefficient of luminous intensity R of a plane retroreflective surface by its area A

R =R/A = I/ E A MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaiqaciWacmGadaGadeaabaGaaqaaaOqaaiqadkfagaqbaiabg2da9maalyaabaGaamOuaaqaaiaadgeaaaGaeyypa0ZaaSaaaeaadaWcgaqaaiaadMeaaeaacaWGfbWaaSbaaSqaaiabgwQiEbqabaaaaaGcbaGaamyqaaaaaaa@3E5D@

unit: cd • lх -1 • m -2

NOTE – This quantity is particularly suitable for describing materials in sheet form.


fr
coefficient de rétroréflexion (d'une surface plane rétroréfléchissante) m
quotient du coefficient d'intensité lumineuse R d'une surface plane rétroréfléchissante par son aire A

R =R/A = I/ E A MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaiqaciWacmGadaGadeaabaGaaqaaaOqaaiqadkfagaqbaiabg2da9maalyaabaGaamOuaaqaaiaadgeaaaGaeyypa0ZaaSaaaeaadaWcgaqaaiaadMeaaeaacaWGfbWaaSbaaSqaaiabgwQiEbqabaaaaaGcbaGaamyqaaaaaaa@3E5D@

unité: cd • 1х -1 • m -2

NOTE – Cette grandeur est particulièrement utile dans le cas de matériaux en feuilles.


ar
معامل الانعكاس الخلفي

de
spezifischer Rückstrahlwert (eines ebenen Reflexstoffes), m

es
coeficiente de retrorreflexión

fi
valovoimakerroin pinta-alayksikköä kohti
paluuheijastimen valovoimakerroin pinta-alayksikköä kohti

it
coefficiente di retroriflessione

ko
재귀반사계수, 평면 재귀성반사 표면

ja
再帰反射係数

no
nb retrorefleksjonskoeffisient

nn retrorefleksjonskoeffisient

pl
gęstość powierzchniowa współczynnika odblasku (płaskiej powierzchni o odbiciu powrotnym)

pt
coeficiente de retro-reflexão (de uma superfície plana retro-reflectora)

sv
retroreflexionskoefficient

Publication date: 1987
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