[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
Re: [ATM] Quartz blanks
I ran across this russian site that supplies astrosital blanks.
http://www.lzos.ru/en/astro_mirrors.htm
William Marriott wrote:
>Hello;
>
>One place to look is at Advanced Glass Industries
>(AGI)
>
>http://www.advancedglass.net/
>
>They specialize in blanks, not finished products
>
>Their "substrate grade" Corning fused silica we use to
>make lots of smaller optics. We have also purchased
>material from them to make tooling for optical
>processing, and as far as I can tell, its just Corning
>fused silica with too many inclusions to pass the
>test.
>
>They quoted me about $800 for a 10" diameter 2" thick
>"optical" quality blank to replace the Bk-7 one in our
>interferometer at work.
>
>NO matter what it will not be cheap to find a 20" FS
>blank, unless you happen to hit Surplus Shed or Ebay
>at just the right time.
>
>Bill Marriott
>VA Optical Labs
>_______________________________________________
>ATM mailing list http://www.atmlist.net/
>
>
>
_______________________________________________
ATM mailing list http://www.atmlist.net/