White light and colors ?

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  • #1
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Main Question or Discussion Point

Is it possible to pulse white light from a source and see colors .
 

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  • #2
Bill_K
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Not unless you use a prism. However there are optical illusions which seem to produce color from pulsating white light. If you watch a rotating disc with alternating black and white stripes painted on it, your eye will tell you there are bands of colors.
 
  • #3
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like a benham top.
 
  • #4
sophiecentaur
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It's a very subtle effect and not a basis for actual 'colour synthesis' like you'd need for colour TV. The strength of the effect is very subjective and depends upon the individual. I reckon it works on the different time constants and linearities of the colour receptors in the eye.
A prism or some diffracting structure (an oil film or lines on a CD surface, for example) works much better!
 

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