Played with it last night.

Powered as it is by AAA cells, it seems to have
a greater power, and a greater reserve of power, than
those laserpointers powered by watch batteries.

Allowing for the lens that is used to produce the
straight line beam, the spot from the end was
easily picked out on a gravestone 1/4 mile away,
thus suggesting that a tight beam is being produced.

As these beasties come in a mounting that already
has facilities for screw fixing, perhaps there is
potential capability for optical communications?

(Brian - in your experiments with the Fullerphone, you
ran away from the question as to whether you crossed
a property boundary, so....

1. Did you cross a property boundary?
2. Why do you run away from this and so many other questions?
3. Is your attitude what we must all now expect from the RSCB?)


Plod's Conscience wrote:
My local garage is selling laser devices that project
a straight line for just under a fiver. I wonder if these
devices (with the lens removed so that they just
produce a single spot) could be modulated to be
the light source in a Baird Televisor?

Also, I wonder what is the smallest such Televisor
that has been produced?