Re: ATM An efficint algorithm for robotic Foucault testing

[Hugues.Laroche@ses-astra.com]

Hi Dale,

I said:

>> Also one thing you did not mention: with that you
>> can analise the mirror
>> not only along the horizontal diameter, but others
>> as well.

and you answered

>I don't believe that you can because of the geometry
>of the knife and mirror.  The knife is cutting into
>light from horizontally opposed zones and not others.
>The setup is no different than the standard Foucault
>setup and you can't determine astigmatism using only
>one diameter with it.

Ooops. Sorry I should stop smoking everything
lying around ;-). Yes it is a Foucault setup,
I do not know why I was figuring something like
the wire test (but in fact this one could be
computerised more or less the way you propose?)

Hugues




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