Laser projector

We don't yet have a consumer device, seen in the film Real Genius, which takes a laser beam, and rapidly points in different directions so as to project a vectorized image, for example,text. One can imagine it's a mirror controlled by some motors.

For images which cannot be drawn with a single stroke, an aperture and shutter are needed. It's important for the shutter not to overheat when closed -- perhaps it is reflects the beam into a heat sink.

Some knobs to adjust linear transformations.