White Light
Sunday, January 31st, 2010
Is daylight “white light?” If not, what natural sources contain white light?
I am trying to research the color spectrum as it relates to bubbles and I keep finding references to white light, but no sources for it. I tried to research it on the Internet, but all I get is page after page of stuff about artifical light sources.
Thanks!
It depends on how precise you need to be about ‘white’. Broadly, it’s any reasonably balanced spectral mix over the visible spectrum. Daylight is well balanced, less so at dawn or dusk. A bright incandescent bulb is good. A standard fluorescent bulb is not, it’s ‘cool’ (low in red), but a ‘daylight’ is better, and a ‘full spectrum’ fluorescent is the most balanced fluorescent. A photographic floodlight is balanced but more expensive. A natural source besides sunlight is a hot fire.
Gorillaz – White Light
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