Of course, you could bounce the laser beam between two parallel mirrors
- this provides a virtual path much longer than the folded path of the
beam, so when it finally exits the mirrors, it will have travelled a
much larger distance and hence the deflection at the far end would be
greater. Of course, there's some beam loss at each bounce, but good
surface-silvered mirrors would minimise that, I suppose.

> ----------
> From:         Alan King[SMTP:shadedemon@MINDSPRING.COM]
> Reply To:     pic microcontroller discussion list
> Sent:         Thursday, December 18, 1997 4:06 PM
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      Re: Servo Laser Control
>
> Fine is the key word.  Very little angular deflection.  Not too useful
> unless you need a 1" pattern on the wall on the other side of the
> room..
>
>
> Andrew Mayo wrote:
> >
> > A very interesting idea indeed. Now, where's an old CDROM drive.....
> >
> > > ----------
> > > From:         William Chops Westfield[SMTP:billw@CISCO.COM]
> > > Reply To:     pic microcontroller discussion list
> > > Sent:         Tuesday, December 16, 1997 12:20 PM
> > > To:   PICLIST@MITVMA.MIT.EDU
> > > Subject:      Re: Servo Laser Control
> > >
> > > The read/write head of CDROM drive has a pretty impressive set of
> > > degrees of
> > > fine motion that I image are used for focus and "fine" movement.
>