L
Lostgallifreyan
Guest
"Mr.T" <MrT@home> wrote in
news:4694982c$0$18304$afc38c87@news.optusnet.com.au:
can fool vision with RGB but when presented with purple and monochrome
violet we can see the difference without difficulty. Same goes for the
orange of laser or LED or low pressure sodium, or that made by mixing red
and green. We usually know when we're seeing a pure form of colour, and
it's only conditioning that allows us to easily accept things like TV
screens. (Which chop out all red below about 635 nm, as it happens, as
well as most of the rest of the spectrum).
As far as natural light goes, we are best satisfied by a true continuum
because we adapted to that before we evolved eyes, as such. Take a look at
a Cree or Luxeon LED carefully reflected in a CD. Now do the same with a
CFL. The LED's might be a tad skewed in their distribution but so is
daylight, usually, and LED's make a much better continuum than CFL's do. If
CFL's could do better they probably would, but I haven't seen one that
does.
news:4694982c$0$18304$afc38c87@news.optusnet.com.au:
Yes. We are better at sensing discontinuities too, than we might think. WeFine, that's why we all get a personal preference. However the spectrum
spread has as much to do with it as the stated color temperature IMO.
can fool vision with RGB but when presented with purple and monochrome
violet we can see the difference without difficulty. Same goes for the
orange of laser or LED or low pressure sodium, or that made by mixing red
and green. We usually know when we're seeing a pure form of colour, and
it's only conditioning that allows us to easily accept things like TV
screens. (Which chop out all red below about 635 nm, as it happens, as
well as most of the rest of the spectrum).
As far as natural light goes, we are best satisfied by a true continuum
because we adapted to that before we evolved eyes, as such. Take a look at
a Cree or Luxeon LED carefully reflected in a CD. Now do the same with a
CFL. The LED's might be a tad skewed in their distribution but so is
daylight, usually, and LED's make a much better continuum than CFL's do. If
CFL's could do better they probably would, but I haven't seen one that
does.