17 aug 2005 kl. 22.05 skrev ADavidhazy:
...
But what about magenta? Since it does not exist in the spectrum it
must mean
that two primary colors are mostly aligned with the analyzer, no?
Wouldn´t that happen if, say, blue was rotated more than 90 degrees
and red less than 90 degrees? (90 + a and 90 - a to be more
specific). Then their components parallell to the second polarizer
would still be the same. AFAIK, rotations greater than 90 degrees is
quite possible if the birefringent sheet is thick enough.
Per (possibly making a fool of himself after a weensie teensie
evening whisky.... Well, someone wrote just a while ago about adding
alcohol to chemicals....)
