[SML] Laser projection for white stars

[*Hobbit*]

The other problem with "white" is that it's usually a mix of wavelengths,
and if the effect-generator does *anything* with diffraction you get a
spread of the wavelengths, i.e. little sets of R/G/B dots.  If this is the
"Sharelife" unit I managed to search up, the supposed "output" does have a
pattern, and it looks like it's a *de-saturated* photo of what we'd more
ordinarily expect from a typical double-diffraction projector.

    http://techno-fandom.org/~hobbit/lighting/laserspray/

One way I've seen "stars" done is with seriously fast scanning and modulation,
turning the (full) beam on for a very short line in various directions across
a set of points, making a little six or eight way "splat" around each point to
make it look more "star" like than just a dot.  Something of that capability
isn't going to come from fleabay for $200, especially if backed by software
that could make those points move around and stay in self-alignment.

And yeah, a genuine 2 or 5 watts is a lot.  So easy to have these days, where
not that long ago it took 208 3-phase, a rack of 2N3055s the size of Delaware,
and water cooling...

_H*