From: Michael Lindner 
To: atm{at}shore.net
Reply-To: Michael Lindner 


John Sherman (via Nils Olof Carlin) wrote:
> > My understanding is that Francis derived the test from the Gaviola
...

When I originally mentioned the wire test, I was talking about the
"transverse" wire test, which I have read about in "Optical
Shop Testing", and in an old TM article. I haven't seen any
information on the "lateral" wire test, although a search through
Google and the ATM archives leads me to references to a web page with a
general description.

First off, can someone recommend some good references for either/both of these tests?

Secondly, am I correect in assuming that the LWT, being essentially a
"single wire ronchi grating", one is measuring/comparing the
shape of the image of the wire, or just its position?

--
Michael Lindner
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