Thorsten Froehlich wrote:
> There is glass.inc .

...which has the iors set at 1.5, and the dispersion of some set at not 
the ior (iirc for a single value representing the diffraction in a 
material, the ior should be used).

My table of IORs has the following entries:
Glass____________________1.51714
Glass, Albite____________1.489
Glass, Crown_____________1.52
Glass, Crown, Zinc_______1.517
Glass, Flint, Dense______1.66
Glass, Flint, Heaviest___1.89
Glass, Flint, Heavy______1.65548
Glass, Flint, Lanthanum__1.8
Glass, Flint, Light______1.58038
Glass, Flint, Medium_____1.62725

Personally, I think many of the posters in this thread being a bit 
immature and unnecessarily caustic in their messages.  The only 
difference between them is one of them is an admin and wields power.  So 
I kindly request that we tone it down a notch, kids.

-- 
Tim Cook
http://home.bellsouth.net/p/PWP-empyrean

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