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Re: [ATM] Dirty Design Trick
Friday, January 6, 2006, 8:36:21 AM, you wrote:
RFLRS> I'd heard a bit about a few of these. In:
RFLRS> Surf Radius Thickness Glass Diameter
RFLRS> STO Infinity -1.579773 60
RFLRS> 2 285.641 7.6 BK7 63
RFLRS> 3 -261.529 4.4 F2 63
RFLRS> 4 -2465.37 293.6219 63
RFLRS> 5 261.529 7.6 BK7 63
RFLRS> 6 -285.641 0.19826 63
RFLRS> 7 -261.529 4.4 F2 63
RFLRS> 8 -2465.37 190.9509 63
RFLRS> IMA -394.8356 26.05473
RFLRS> the first f/10 doublet has a Visual Strehl of 0.843 in the
RFLRS> center, but drops to 0.287 at 13 mm off axis. Some is
RFLRS> residual coma.
RFLRS> In the second doublet, the crown lens is reversed; the
RFLRS> two lenses are nearly in contact at the edge (0.0365 mm).
RFLRS> The visual Strehl of the f/6.7 full system is 0.790 in the
RFLRS> center and 0.703 off axis.
RFLRS> I tried this with some standard OTS lenses listed in the
RFLRS> catalogs, but I've not found any that have this level of
RFLRS> correction. Rats... for a second there, I thought I had
RFLRS> a common scheme:-(
RFLRS> _______________________________________________
RFLRS> ATM mailing list http://www.atmlist.net/
Hello Richard,
It is really a cheaty design! I checked in Zemax.
Is it possible to do it using the same glasses but make a f/9 design?
Dou you use Zemax to design these lenses? Can you give me suggestion
how can I use the optimisation function in Zemax?
I have not to much knowledge about it.
Thank's a lot!
I really want to make a lens in big size for visual use.
--
Clear skies!
Attila Schné
mailto:yolo@chello.hu
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