Junktronix has the scanners that are small enough to work on a pocket projector, . Cambridges, 62XX series. At the price he's selling them its a once in a lifetime shot, too.
Getting rid of the amplifier heat in a pocket may be interesting, though. How about trying for a 4" cube? Lithium ion cells are your friends for this one.
If i get that far i'll probably add a mcu with a built in FPGA so its fast enough to do the x/y scanning.
AVR MEGA is fast enough, see the link I sent you.
I have lots of electronics and microcontroller experience but only a little optical experience. I've got the KEX-400A sled apart and confirmed the two PBS cubes do combine light the way i expected (from rog8811's spiro project)
Not a problem.
We can help :-)
Steve
Qui habet Christos, habet Vitam!
I should have rented the space under my name for advertising.
When I still could have...