At 22.56 2008.06.25, Olin Lathrop wrote:
>Tom=E1s =D3 h=C9ilidhe wrote:
>> I'm after sending an e-mail to a colour-blind association asking them
>> what are the two best colours to use. I'll let you know what response
>> I get.
>
>There are various forms of color blindness, so there is no one right answe=
r.
>For complete color blindness, which is actually quite rare, only the
>brightness matters, not the color.  The best approach to easily distinguis
>the states is to use separte LEDs.  That way the information is encoded in
>position, the LEDs are easier to drive, and you have a much wider range to
>choose from.

and don't forget to make things HUGE, since total color blindness means
no cones in the retina, and no cones means no fovea, and no fovea means
extremely bad visual acuity (1/20th to 1/10th).



>
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