Re: On the effect of florescence
Re: On the effect of florescence
- Subject: Re: On the effect of florescence
- From: Armand Rosenberg <email@hidden>
- Date: Wed, 2 Mar 2005 19:37:40 -0500
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)?
I know what it means to have a 5000K or 6500K etc. "blackbody
emitter" (oops -- physics term!) -- that WOULD in principle specify
the relative emitted power as a function of wavelength for all
wavelengths. My question is whether the D50 or D65 etc. terminology
implies any information about the source's output OUTSIDE the visible
spectrum. That output matters since it can cause fluorescence in the
visible, hence altering colors, as you are discussing.
And while we're at it, can someone clarify the difference between D50
and 5000K (for example) as used by color scientists to describe light
sources?
I could probably google this, but since the experts are here assembled...
Armand
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