IEVref:845-09-73ID:
Language:enStatus: Obsolete
Term: form factor (between two surfaces S<sub>1</sub> and S<sub>2</sub>)
Synonym1:
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Symbol: f
Definition: ratio of the average radiant or luminous flux density received over surface S2 (or S1) from surface S1 (or S2) to the radiant or luminous exitance of surface S1 (or S2)

f 21 = Φ 2 A 2 M 1 = g A 2 MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaiqaciWacmGadaGadeaabaGaaqaaaOqaaiaadAgadaWgaaWcbaGaaGOmaiaaigdaaeqaaOGaeyypa0ZaaSaaaeaacqqHMoGrdaWgaaWcbaGaaGOmaaqabaaakeaacaWGbbWaaSbaaSqaaiaaikdaaeqaaOGaamytamaaBaaaleaacaaIXaaabeaaaaGccqGH9aqpdaWcaaqaaiaadEgaaeaacaWGbbWaaSbaaSqaaiaaikdaaeqaaaaaaaa@4295@ ; A 2 f 21 =g= A 1 f 12 MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaiqaciWacmGadaGadeaabaGaaqaaaOqaaiaadgeadaWgaaWcbaGaaGOmaaqabaGccaWGMbWaaSbaaSqaaiaaikdacaaIXaaabeaakiabg2da9iaadEgacqGH9aqpcaWGbbWaaSbaaSqaaiaaigdaaeqaaOGaamOzamaaBaaaleaacaaIXaGaaGOmaaqabaaaaa@40DD@

unit : 1


Publication date:1987
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Internal notes:2017-06-02: Cleanup - Remove Attached Image 845-09-73.gif
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