Queries, comments, suggestions? Please contact us.



Area Lighting / Radiation, quantities and units

IEV ref845-01-44

Symbol
Hp
H

en
photon exposure (at a point of a surface, for a given duration)
quotient of dQp, number of photons incident on an element of the surface containing the point over the given duration, by the area dA of that element

Equivalent definition. Time integral of Ep, photon irradiance at the given point, over the given duration Δt

H p = d Q p dΑ = Δt E p dt MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaiqaciWacmGadaGadeaabaGaaqaaaOqaaiaadIeadaWgaaWcbaGaaeiCaaqabaGccqGH9aqpdaWcaaqaaiaabsgacaWGrbWaaSbaaSqaaiaabchaaeqaaaGcbaGaaeizaiabfg5abbaacqGH9aqpdaWdraqaaiaadweadaWgaaWcbaGaaeiCaaqabaaabaacdaGae8hLdqKaamiDaaqab0Gaey4kIipakiabgwSixlaabsgacaWG0baaaa@490F@

unit: m-2


fr
exposition photonique (en un point d'une surface, pendant une durée donnée) f
quotient de dQp, nombre de photons reçus par un élément de la surface contenant le point pendant la durée donnée, par l'aire dA de cet élément

Définition équivalente. Intégrale par rapport au temps de l'éclairement photonique Ep, au point donné, étendue à la durée donnée Δt

H p = d Q p dΑ = Δt E p dt MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaiqaciWacmGadaGadeaabaGaaqaaaOqaaiaadIeadaWgaaWcbaGaaeiCaaqabaGccqGH9aqpdaWcaaqaaiaabsgacaWGrbWaaSbaaSqaaiaabchaaeqaaaGcbaGaaeizaiabfg5abbaacqGH9aqpdaWdraqaaiaadweadaWgaaWcbaGaaeiCaaqabaaabaacdaGae8hLdqKaamiDaaqab0Gaey4kIipakiabgwSixlaabsgacaWG0baaaa@490F@

unité: m-2


ar
تعريض الفوتوني (لنقطة على السطح لزمن معين)

de
Photonenbestrahlung (an einem Punkt einer Oberfläche, während einer gegebenen Zeit), f

es
exposición fotónica

fi
fotonisäteilytys

it
esposizione fotonica

ko
광자 노광량, <주어진 기간에 대한 표면 한점>

ja
光子露光量

no
nb fotoneksponering

nn fotoneksponering

pl
napromienienie fotonowe (w danym punkcie powierzchni, w danym czasie trwania)

pt
exposição fotónica (num ponto de uma superfície, durante um dado tempo)

sr
фотонска експозиција , <у тачки површине за дато време трајања> ж јд
изложеност фотонима, ж јд

sv
fotonexponering

Publication date: 1987
Copyright © IEC 2020. All Rights Reserved.