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Raphion

join:2000-10-14
Samsara
Reviews:
·Verizon FiOS

1 recommendation

reply to tschmidt

Re: Another Reason to Not Use CFLs...

Where CRI comes into play is with pigments or pigment mixtures that reflect colors that are in the light source's deadbands. For example, a pigment that admits light primarily around 520nm would appear much darker relative to a pigment that admits light around 545nm in the F32T8 light, while the same two pigments appear the same relative shade in natural light.

The colors seem to change from what they'd be in natural light simply because all the colors of light aren't there for the pigments to "work with".

CRI is largely determined by how complete and smooth the spectral distribution is.



SparkChaser
Premium
join:2000-06-06
Downingtown, PA
kudos:3
Reviews:
·Verizon FiOS

1 recommendation

said by Raphion:

Where CRI comes into play is with pigments or pigment mixtures that reflect colors that are in the light source's deadbands. For example, a pigment that admits light primarily around 520nm would appear much darker relative to a pigment that admits light around 545nm


Your explanation of the peaks in fluorescence are correct except that the color result is reversed. Pigments absorb light not emit it. The color is the area in the spectrum where the pigment doesn't absorb.
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