Bill Crocker wrote:

I have a weird problem with red. My wife's Pontiac Grand Prix
instrument
panel is illuminated in red, and it always looks a little blurry to me.
I
think green is probably the best overall. Remember the "green screen"
monochrome IBM monitors? I actually kind of miss them. Text was
sharp!

Bill Crocker
--------------------------------
A frined's uncle was a enginner at HP and worked on their
first LED calculator. They ran into an odd problem. The durves
that showed the visual response of the human eye where not
all that good. Many men had major problems first LEDs displays
they made if there was any room light. A rapid reformulation of
the LEDs saved teh day. Many men can not see nearly as deep
into the red as the charts still show. And a few can see well into
IR. I have no idea how a females eyes respond, but I suspect the
same data appplies. They were con cerend with males, because
that is who bought the early calculators.

I do know that most women as a gerenal rule can discern subtle
color variations that most men can't.

This relates to LASER pointers. Human vision has a fairly fast
drop in response at the red end, and only a few nM in wavelength
can make a LASER lose a lot of apparent brightness. The deeper
reds LASES are much cheaper then the higher red LASERS.

Terry