From: "Richard F.L.R. Snashall" 
To: ATM 
Reply-To: "Richard F.L.R. Snashall" 


I have had a hard time getting some tolerances for a particular design:

        http://users.rcn.com/rflrs/dgauss2-07x.txt

(sorry, no OSLO file -- a double Gauss form  doesn't fit in OSLO LT).  I
come up to 1-3 microns of sagitta and between 0.01 and 0.1 mm of thickness!

The tolerances seem to be inordinately tight.  Is this typical of double
Gauss forms or is this one of those singularities I have heard about? 
Maybe this is a ZEMAX question, though; I am using the spaces before and
after the lenses as compensator.

        Rick S.

--- BBBS/NT v4.00 MP