Re: [ATM] In Need of a Mirror coater

[Michael Lindner <mikell@optonline.net>]

Samuel DiRocco wrote:
> These quotes are for the minimum 89% coatings. The prices are coming from
> the weight of the mirror, or so I am being told. The mirror is 4" thick
> fused quartz and weighs in at around 150+ lbs.
> 
> On 5/9/07 5:56 PM, "Jarvis Krumbein" <jkoptic@juno.com> wrote:
>> Sam, what kind of coating did you ask for?  I can't believe that they
>> quoted for a Beryl coating would be $2500, not even for a 30".  If you
>> asked for something more exotic such as 99% reflectivity and special
>> overcoats then maybe.

If they don't have a holder for the mirror that can support that much 
weight, it may indeed cost quite a bit, as they'd have to fabricate a 
new holder in order to coat it.

-- 
Michael Lindner
http://www.starastronomy.org *** http://home.att.net/~mikel
http://www.atmsite.org *** http://www.atmlist.net
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