by t_3 » Sun Sep 23, 2012 7:23 am
t_3
Sun Sep 23, 2012 7:23 am
great find; only the chromatic dispersion is _not_ the cauchy b coefficient; but you can calculate it from the abbe number, it's formula c & f wavelengths and the refractive index...
B = ( nd - 1 ) / Vd * ( ( F² * C² ) / ( C² - F² ) )or in terms taken from the link you posted:
B = ( 1.5168 - 1 ) / 64.2 * ( ( 0.48613² * 0.65627² ) / ( 0.65627² - 0.48613² ) ) = 0.00421534basics for the transformation:
http://www2.ph.ed.ac.uk/~wjh/teaching/o ... ersion.pdf
„The obvious is that which is never seen until someone expresses it simply ‟
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