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I managed to get the values for CR39:

nF = 1.5040
nC = 1.4956

Thnaks to David Boettcher at PPG for the info

John:cheers:

Hi All
Does anyone have the nF and nC values for CR39 used in caclulating Dispersion
John Mccarthy

Steve,
Congrats on the new look Optiboard.
Thanks for providing an invaluable service to the Optical Community.
Best Regards
John.

Hi from a new member. Great site!!
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