Re: [ATM] Ultra thin torture

[Jarvis Krumbein <jkoptic@juno.com>]

Dale, you can probably check the mirror for stress even if the mirror is
coated.  Use a laptop screen as the light source and view the reflected
image through the back using a polarizer.  This should work just as well
as the light still passes through the glass.

Jarvis Krumbein


On Sat, 11 Feb 2006 14:24:22 -0800 (PST) Dale Eason <atmpob@yahoo.com>
writes:
> 
> I don't know if I'm torturing it or it is torturing
> me.
> 
> I was wrong.  The center stayed high,  the correction
> did not change.  Instead I got 7 waves PV on the
> wavefront of X astigmatism.
> 
> Possible causes:
> 1. stress in the glass.  I can't measure that because
> the mirror is coated.
> 
> 
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around 
> http://mail.yahoo.com 
> _______________________________________________
> ATM mailing list http://www.atmlist.net/
> 

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