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[ATM] Foucault
David Williams wrote:
> Also I don't understand PLOP.
You have your plate full learning the Foucault test, using Sixtests and
figuring your mirror. Send us your mirror dimensions and one or more of
us will work up some cell layouts with Plop.
We need to know:
Mirror material (plate glass, Pyrex, etc.)
Mirror outside diameter, to 1mm accuracy.
Mirror edge thickness, to 1mm accuracy.
Mirror Focal Length, to an inch or so accuracy.
Planned Diagonal Diameter (actually the minor axis) to a couple of mm
accuracy.
It won't be a problem if your focal length changes a bit during
figuring. It isn't that critical a variable in Plop.
--
Mark Holm
mdholm@telerama.com
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