Messages

Subject:
color of fluorescent light

John K Jordan
>>>Cool white fluorescents are 62, interesting.

I think the problem with fluorescents, at least the older bulbs, is the spectrum is not continuous as with black-body radiation (e.g. incandescents) but emitted in strong narrow bands due to the nature of mercury vapor and the phosphors used. Decades ago the common T12 (12/8" dia) bulbs used phosphors that put out horrible color, both for the eye but especially for film photography - even the special filters we bought to correct were not effective. Now fluorescent bulbs are made with very different phosphors for much better light.

A quick search brought up this article: https://en.wikipedia.org/wiki/Fluorescent_lamp
Search for "color" to get to the interesting parts about the light. There are photos and fascinating spectral charts.

JKJ

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