Re: New XY Monitors

I was going to fire the three bulbs through their respective color filters, then
focus them into short pieces of fiber optics which would then position the 3 beams
into 3 VERY closely positioned parallel beams. Hopefully that was going to keep
everything well converged and focused all the way to the screen.

I'm probably missing something here, but it sounded good at the time. Optics AREN'T
my field of expertise. I would have rather used very bright LEDs, but I doubt that
I would have gotten enough useful screen brightness.

Zonn wrote:

> On Fri, 17 Nov 2000 14:38:37 -0600, Rodger Boots <rlboots@cedar-rapids.net>
> wrote:
>
> >I wouldn't be using their power supply, I need one that can modulate the lamp
> >current at video speed. Also, wouldn't be running the bulb anywhere near full
> >brightness.
> >
>
> I'm a bit confused at how you would focus your light sources.
>
> You will need to focus them down to a point on the galvos / piezo's, would you
> then have the light go through a second lens to re-focus it for projection? And
> would the second lens need to be deformed in such a way as to correct for the
> edges of the projection (which will be farther from the source than the center)?
>
> It would of course be more convenient if the projector could sit on the ground
> and project upwards, which is even more of a focus problem.
>
> -Zonn
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