I don't know about the others folks have posted about or about modern
linera polarizers, but a c-pol has to have at lease 2 layers. There are
2 functions, polarize, then depolarize without the stuff filtered out by
the first layer. I suppose a coating to do one of them may be invented?
Moose
jbrokaw@xxxxxxxx wrote:
>I think most modern solid color filters are actually made from colored
>glass. However, due to the nature of polarized material I think it -has- to
>be a polymer e.g. plastic of some sort, so they almost have to be sandwich
>construction. As such, I've seen a lot of 30-50 year old polarizers that are
>delaminated. I'd even like to find a source of polarized circle blanks,
>optical grade, to rebuild some odd sizes like 40.5mm, 43mm, etc.
>
>
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