Re: beam combiner


Chloe_yamato@xxxxxxxxx wrote:
> I am wondering about how three chip DLP projectors combine the beams
to
> form one image. is it just a beam splitter used in reverse?

It is typically achieved by using a Philips prism. These prisms work
by TIR (total internal reflection) and dichroic coatings. These prisms
are older technology that was used in 3 color TV cameras.

You will find some more useful info in my archived enewsletters on
projector technology at:
http://www.oscintl.com/enewsletter

Michael

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