Re: [ATM] Computing surface from Ronchi image?

["Nils Olof Carlin" <nilsolof.carlin@telia.com>]

Dale asked:

> Is it possible to compute the actual mirror surface
> from Rohchi images similar to what you can do with
> interferometric fringes?
>
> I assume not since I have not seen it done.

Neither have I, but I like to believe in principle it can be done. I believe 
better though with some kind of 2-dimensional pattern, though. The same kind 
of algorithms as in SIXTESTS ought to work - implemented in 2d.

John Sherman wrote some about it - see:
http://www.johnspics.com/a/spot3.html

Guess this would be worth some experimenting

Nils Olof 


_______________________________________________
ATM mailing list http://www.atmlist.net/