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Thread: Beam expander after scanners.. possible?

  1. #31
    Join Date
    Aug 2011
    Cape Town, South Africa


    Hi, I have ordered some cheap lenses which are in the mail from china. Probably another month or two before I report back.

    Quote Originally Posted by aricha View Post
    Did you make any progress?
    Can you share your results?

  2. #32
    Join Date
    Jan 2008


    Quote Originally Posted by Humphry View Post
    I am tasked with a fairly long distance laser projection, and need to get divergence low as possible in the far field (say 500 meters distance).
    I remember someone talking about a lens system placed directly AFTER scanners, which reduces divergence at the expense of narrower scan angle. Could this just be a simple beam expander?
    How fast do you plan to scan? Budget? Can you expand the beam and scan it with large mirrors?

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