Sure. Use a vibrating mirror. I think here are several such arrangements
available commercially. A good place to start looking is at your nearest
planetarium. They frequently project lasers on their screens as part of the
show.
M Kinsler
I would suggest to use lasers with angular moving mirrors. The rotation
is done with servo-motors which can be controlled with an analogue
voltage. These type of lasers are frequently used in laser shows
(like in disco's). The produce pictures on the wall but even in the open
air if you like.
Regards,
F.Donkers (fl...@dds.nl)