Re: [ATM] Too Small Optics-( and flex produced optics)

["Bill Kelley" <flex@commspeed.net>]

Jerry wrote,

> I'll bet that a flexed mirror can't
be tested on an interferometer either. And not on any other shop test either
I suppose.<

Save your money Jerry, they can be tested by all of the "shop"methods.  I 
just recently tested one by auto collimation at the U of A Mirror Lab. Adler 
insists on zonal testing. I just sent him an 8" flat so that he would quit 
nagging me for zonal tests.  Surely you know that the constant slope of a 
sphere is easier to make smooth and zone free.
This thread was about using compression flexing to figure a paraboloid. Not 
about flex mirrors maintained under tension.

Bill Kelley 


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