Re: CCD

> From: Arne Chr. Jorgensen <instel@...>
> > If you forget your plotter, and just think of an 8mm film. It should
> > be possible to make something more accurate, don't you think ?

Oh, sure! Just divert for 5 years building a platform supported entirely
by bedrock only, then a couple of years putting a floating building on the
platform, entirely enclosed by an outer building, to remove atmospheric
vibrations from the air in the inner building. Then, build a really nice
laser optics lab, with an optical bench made from a slab of granite 2 feet
thick by 4 feet by 12 feet. Then, set up the laser optics to make evenly
spaced fringes of red laser light across a span of 4 feet or so, so you can
expose photoresist to pattern your Zerodur (TM) quartz measuring spars.

After all this work, ten years or so, and about $40 million bucks, minimum,
you have successfully made a measuring spar you could buy for about $1200.

Wow, what an adventure, though! Think how much you'd learn!

Jon