Re: [ATM] Mirror back from coaters with scratches

[Dale Eason <atmpob@yahoo.com>]

Try a Foucault test now to see if you can see the
scratches.

Dale Eason

--- Hiroyuki HIKITA <hikita@tkb.att.ne.jp> wrote:

> Hi, thanks for all the replies. I'm bit more calm
> now.
> 
> I'll try resolving this issue with the coating
> company.
> 
> btw. I've uploaded the Foucault test image just
> before it went
> off to be executed.
> 
>
http://www.atmlist.net/contrib/hikita-at-tkb-dot-att-dot-ne-dot-jp/08-01-2006.jpg
> 
> The mirror was started in a Mirror making class here
> in Tokyo last year,
> and finished about a month after the class.
> 
> The coating company was recommended at the class. I
> don't think The coating
> company make any profit out of this (5000yen for Al
> coating + SiO overcoat).
> 
> I've attended the class again this year. But this
> time I can't get it past
> 1/3 Lambda PV wave front... :-(
> 
> # Hiroyuki HIKITA
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> ATM mailing list http://www.atmlist.net/
> 


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