[sci.electronics] Laser: GS, galvano-something??

hughes@math.Berkeley.EDU (eric hughes) (12/07/88)

Could someone please explain what these GS devices are and
how they work?  I take they are some sort of electromagnetic
positioning thing, but exactly what?

I have often thought that I would like a light show type display
instead of staring at a CRT all day.  It seems doable to set up
a scanning system which would continously redraw the letters on
a wall, just like an old vector drawing graphics display.  Ideally,
there would be a card in my PC which would emulate a standard
text card and would connect out the back to the display device.

Ideas?  Comments?  References to previous work?

Eric Hughes
hughes@math.berkeley.edu