Re: Aluminum Beryllium

Cliff wrote: 
On Mon, 24 Oct 2005 12:27:29 GMT, jeff
<jalowe44INVALID@xxxxxxxxxxxxxxxxxxx> wrote:


Cliff wrote:

On Fri, 21 Oct 2005 23:10:38 -0400, bytecolor <bytecolor@xxxxxxxxx>
wrote:

The magazine was the October issue of Manufacturing Engineering.

http://tinyurl.com/a44gv 

 Thanks, a bit interesting.
 Infrared it says ...

It's no Hubble replacement. Very specific capabilities for specialized observations. The final lenses in the camera pack are diamond turned Zinc Selenide crystals. Same material as CO2 laser lenses.


Hey, Jeff ....
Same Jeff as the 123? Just curious .... perhaps a puzzle solved <G>.

CO2 might tend to be in the UV though ? 

As the 123? I don't understand the reference.

UV?
CO2 lasers operate at about 10u. Zinc selenide makes great lenses in this range and is well suited to direct diamond machining. A guy in the next town over (Charlestown NH) has the contract to machine the lenses for the JWST.

--
jeff

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