Results 1 to 5 of 5

Thread: Beam Splitter

  1. #1

    Beam Splitter

    I wonder if this could be used to make a self separating RGB camera
    http://www.surplusshed.com/pages/item/l14562.html
    Chris
    --
    Check out my pinhole sets at Flickr flickr.com/photos/pinholeblender/
    and my cameras at www.pinholeblender.com

  2. #2
    "Polarized in such a way ..."
    How do they DO that?!? This is almost fascinating enough to invest $30, just to see it work!
    I wonder how well separated the color bandwidths are...
    |
    |
    |
    OK, they're dichroic prisms, and $35 for a 35mm cube is a very good price.
    There are a lot on ebay, most appear to be seconds, with nicks, etc.

    At http://www.cnilaser.com/combiner.htm there's a chart showing separation % for similar 2- and 3-color prisms/
    Last edited by DaveBell; 08-26-2014 at 05:07 PM. Reason: update

  3. #3
    Senior Member dwerg85's Avatar
    Join Date
    Jan 2011
    Location
    Curacao, Caribbean
    Posts
    295
    This is more or less what one would find in a 3ccd video camera right? I think i've seen something like that when taking one of them apart once.

  4. #4
    500+ Posts earlj's Avatar
    Join Date
    Jun 2004
    Location
    Inver Grove Heights, Minnesota, United States
    Posts
    5,745
    Blog Entries
    7
    I envision three monochrome negatives for printing 3 color gum or carbon prints. But since digital color separations are so easy, why bother? I guess I shouldn't ask that kind of question on a site where everyone builds their own cameras out of tins cans and plywood. . . . .
    because:
    "a squid eating dough in a polyethylene bag is fast and bulbous, got me?"
    -Don Van Vliet

  5. #5
    500+ Posts earlj's Avatar
    Join Date
    Jun 2004
    Location
    Inver Grove Heights, Minnesota, United States
    Posts
    5,745
    Blog Entries
    7
    I ordered one of these gizmos, so I will let you know what it looks like when it arrives.
    because:
    "a squid eating dough in a polyethylene bag is fast and bulbous, got me?"
    -Don Van Vliet

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •