Re: ATM Sept issue / Pantratz

[Michael Peck <mpeck1@ix.netcom.com>]

At 14:56 7/19/1999 -0700, you wrote:
>Well Mike,
>
>I don't think it's as hard as you make it out to be. Fabricating a 5-6"
>parabola ( mirror over tool ) and checking it through the polished back
>really should not scare off too many glass pushers. Granted it's not as

>> using a pair of confocal paraboloidal mirrors. Even advanced ATMs by and
>> large fear tackling convex aspheric elements, and unless that changes
>
>

FWIW it isn't necessarily my opinion that a convex asphere is exceptionally
hard, but plenty of experienced ATMs will tell you otherwise. Why do you
suppose Mike Pankratz devoted 500 hours to designing an optical system that
avoided aspheric elements altogether? I can show you optical designs that
will perform better over significantly larger fields and that take maybe
500 seconds of design work to put together. Actually building them might be
tough though...

Mike Peck
 
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Michael Peck
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