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Thread: Scan Angle ??

  1. #1
    Join Date
    Jan 2007
    Posts
    163

    Exclamation Scan Angle ??

    Hi Guys,

    Another dumb one

    How do you determine scanner scanning angle

    Thanks

    Werner

  2. #2
    Join Date
    Apr 2007
    Location
    Toronto Canada
    Posts
    1,120

    Default

    It is in specs sheet. Most galvos will do 20 but some will 40....CT for ex. will do 40.

  3. #3
    Join Date
    Nov 2005
    Location
    Melbourne, Australia
    Posts
    3,693

    Default

    KVANT Australian projector sales
    https://www.facebook.com/kvantaus/

    Lasershowparts- Laser Parts at great prices
    https://www.facebook.com/lasershowparts/

  4. #4
    Join Date
    Oct 2006
    Location
    Central Florida
    Posts
    7,067

    Lightbulb

    Damn... I can never find this page on the site... "scan angle" Make it easier to search that way...
    Love, peace, and grease,

    allthat... aka: aaron@pangolin

  5. #5
    Join Date
    Dec 2006
    Location
    Pflugerville, TX, USA
    Posts
    1,977

    Default

    If you want to determine the angle based on what you are projected do this.

    (1) Measure height or width and divide it by 2 and call that value Y.
    (2) Measure distance from image to scanner mirrors and call it X.
    (3) Divide Y by X and do inverse tan to get an angle.
    (4) The angle you get is physical scanner angle.
    (5) Double the angle to get the optical angle.

    All of this is based on the formula: tan(angle) = opp / adjacent.

    I hope my math is right because that's how I do it at home.

  6. #6
    Join Date
    Oct 2006
    Location
    Central Florida
    Posts
    7,067

    Lightbulb

    I like to use the little table on the Pangolin site. I always seem to look for it there and can never find it. Then I come here and search for a post where dave has it linked... I know he has done it a few times.

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