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Old Nov 8th 2014, 10:13 AM   #1
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Definition of white light according to CIE

Hi there!
I'm doing a project on LED as a light source and one part of the project asks you to define white light according to CIE. (International commission on illumination)

I cannot seem to find any really good and precise definition of this. Any help?
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Old Nov 8th 2014, 04:32 PM   #2
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Originally Posted by magiclink93 View Post
Hi there!
I'm doing a project on LED as a light source and one part of the project asks you to define white light according to CIE. (International commission on illumination)

I cannot seem to find any really good and precise definition of this. Any help?
There seem to be various standards for the color white. I looked this up, which seems to indicate that "white light" is the F values. They give a temperature, which would give the maximum wavelength using Wein's displacement law, here. (I'd recommend the whole page because it's a good read. But all you need is the displacment law.)

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