On Nov 8, 2012, at 7:10 PM, Schindler Patrik wrote:
Am 08.11.2012 um 21:48 schrieb Tony Duell:
A B/W CRT
can't display color.
Not even with a rotating disk of colour filters in front of it? (CBS
system???)
Even then not. The picture of the phosphor stays monochrome, regardless of anything in
front of it.
I think Tony's point (pathological corner case though it is)
is that a B&W CRT *can* display color with such a filtering
device; it's how early color TVs worked. The SE/30 has no
method for doing so on any existing video controller, though
I suppose one *could* make such a card if one were suddenly
in possession of far too much spare time.
Come to think of it, I believe it's also how modern DLP
projectors work as well; if you move your eyes fast enough
on a DLP projection, you can see the individual colors
as ghosted images on your retina. It's not a CRT, of
course, but the color concept is the same.
- Dave