Re: On the effect of florescence
Re: On the effect of florescence
- Subject: Re: On the effect of florescence
- From: Graeme Gill <email@hidden>
- Date: Fri, 04 Mar 2005 00:25:38 +1100
- Organization: Argyll CMS
Armand Rosenberg wrote:
I approach spectra as a physicist, not as a color scientist. So I have
to ask: doesn't a term like D50 or D65 etc. describe a spectral
distribution that correlates to a blackbody spectrum with a certain
temperature BUT ONLY in the visible spectrum? Does D50, D65 etc. tell
you anything about what happens to the spectrum of your source in
spectral regions outside the visible (such as UV and IR)?
D50, D65 are not black body radiation spectrum. They are standardized
daylight spectrum. They are characterized in the standards from 300 to 830nm.
Note that it goes down to 300nm specifically to address the colorimetry of
fluorescent materials.
The standard allows you to compute a daylight spectrum with a correlated
color temperature from 4K to 25K.
Graeme Gill.
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