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Thread: Laser Targets for show?

  1. #1
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    Default Laser Targets for show?

    Is anyone aware of a substance I could use as a 'target' ? I'm looking for something disc shaped a couple of inches wide that glows nicely when hit by a laser.

    I've been experimenting with different translucent plastics and glass, but I wondered if there was a standard material for this kind of thing.

    Eventually I want the target to be read by a photocell.

    Steve

  2. #2
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    Anything painted with flourescent (day-glow) paint usually glows nicely when hit.
    What's the photocell for? Power reading?

  3. #3
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    I want to refine this...

    http://www.youtube.com/watch?v=c2NcoWqzMLE

    Steve

  4. #4
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    Firewall blocked, have to wait till I get home from work to see it..

  5. #5
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    It's a short clip of the trial run of my laser harp.

    With nothing more elaborate than 1/2 silvered mirrors and photocells.

  6. #6
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    Oh yeah, Ive seen that!
    Very cool

  7. #7
    mixedgas's Avatar
    mixedgas is online now Creaky Old Award Winning Bastard Technologist
    Infinitus Excellentia Ion Laser Dominatus
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    orange dayglow plexiglas (green or blue excite)
    (glows yellow orange) weak short persistance

    rhodamine B or rhodamine 6G dye in clear casting plastic from the art supply store (glows yellow) no persistance

    zinc sulphide phosphor (glows green) medium to long persistance
    ZnS already doped with additives to glow is avilable from Post Apple Scientific in small quanities.

    Steve R

  8. #8
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    Nice work Shobley.

    I think I need one of those.

  9. #9
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    ..and while you're there at Post Apple you can pick up some salt-peter from grandma Gertie's and play a 'joke' on someone..

  10. #10
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    This laser harp changes colour when you "pluck" it.

    http://www.youtube.com/watch?v=hOM39...elated&search=

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