Re: New XY Monitors

the galvo's in a old Laser player is known as a GAL-2 seen sold on ebay every once and awhile... best case... you could scan a single letter.. if it was large
enough... a GAL-2 is rated at 300 points per second, or about 4-5 vectors per frame... nice for making pretty patterns in laser though :)

peter jones wrote:

> -----Original Message-----
> From: Rodger Boots <rlboots@cedar-rapids.net>
> To: vectorlist@synthcom.com
> Date: Thu, 16 Nov 2000 14:54:42 -0600
> Subject: Re: VECTOR: New XY Monitors
>
> > I was thinking the "laser bouncing off of galvos" method, but the problems there
> > are getting the costs down.
> >
> > So then I says to myself "self, how about using very small earphone elements or
> > piezo transducers VERY close to the laser so they don't have to move much to get a
> > LOT of deflection?", but the lasers are still too expensive.
> >
> > So then, though it's a messy approach, I wondered about using arc lamps for the
> > three colors. Doing high speed modulation should be a nightmare, but let's just
> > see where this thought goes. How much are those arc headlights they use on some
> > cars?
> >
> > The whole downside to all of this, though, is the lack of persistence that CRT
> > phosphors give you. On the "bright" side, though, explosions could light up the
> > room!!!
> >
> I was going to try and play asteroids once using a laser-diode from a pen running past 2 galvo's from an old phillips laser-player but never got around to building it.
>
> it was only to project a small 10-30 inch image but it was just an idea to test the galvo-speed.
>
> L8r.
>
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Received on Fri Nov 17 19:10:33 2000