Andy Neil wrote:
Don't some such systems use constantly spinning mirrors and/or prisms, in conjunction with modulating the laser, to achieve a raster scan? Just like a CRT has horizontal & vertical scan coils, you have horizontal & vertical scan mirrors
(or prisms), with suitable blanking of the laser when it'd be shining "off-screen"
Obviously they'd all need to be synchronised.

Rustu Kaya added:
Yes, seems conceivable. But I wonder too why this classical method is opt out.
Steve or Franc may have an answer.

Rustu