Re: [ATM] Ronchi pattern

[Guy Brandenburg <gfbrandenburg@yahoo.com>]

This is a bit confusing, since you said the same thing
twice by accident.
If the lines OUTSIDE the ROC bend sharply outwards at
the endge of the mirror, you have a turned-down edge,
which is very common and quite difficult to get rid
of; it will take at least an hour of work.. If the
lines INSIDE the ROC bend sharply outwards of the edge
of the mirror, then you have a turned-up edge, which
is much less common and much easier to eliminate.
Guy B
> see the lines inside the ROC sharply bend outwards
> at the edge of the
> > mirror and inside the ROC they bend outwards at
> the edge. Does this mean

=====
Guy  Brandenburg
Washington, DC
My home page:
http://home.earthlink.net/~gfbranden/GFB_Home_Page.html
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