Re: [ATM] Hi resolution interferometry of mirror surface

["Jerry" <wa4guu@verizon.net>]

I should have added that the mirror appears to have been worked with a very
hard lap.  There is more than a zone near the edge. The Foucault shows areas
that are flat at the edge and intervening areas with turn down. The flats
compare with the lows in the interferogram.

Jerry



-----Original Message-----
From: atm-bounces@atmlist.net [mailto:atm-bounces@atmlist.net] On Behalf Of
Dominic-Luc Webb
Sent: Tuesday, May 02, 2006 4:34 AM
To: ATM Superheros
Subject: Re: [ATM] Hi resolution interferometry of mirror surface


Impressive that you can see what appears to be large
deviations compared to a Foucault that looks to be
a very nice parabola.

I am curious if you could mark some of the extreme deviations
found in the interferogram against the Foucault?

I would also be interested in any info on your homemade rig....

Dominic-Luc Webb

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