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Thread: Waveplates for 520 ?

  1. #1
    Join Date
    Oct 2007
    Location
    Vancouver, Canada
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    326

    Default Waveplates for 520 ?

    I'm looking for waveplates or polarization rotators that work with 520nm diodes. Anyone know where to purchase ?

    Or anyone tested standard 532nm waveplates on the 520nm diodes ?

    Thanks.

  2. #2
    Join Date
    Feb 2008
    Location
    East Sussex, England
    Posts
    5,244

    Default

    I just bought some from Stanwax for 520 diodes.

    http://shop.stanwaxlaser.co.uk/12-wa...reen-543-p.asp
    Frikkin Lasers
    http://www.frikkinlasers.co.uk

    You are using Bonetti's defense against me, ah?

    I thought it fitting, considering the rocky terrain.

  3. #3
    Join Date
    Oct 2007
    Location
    Vancouver, Canada
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    326

    Default

    Oh great, glad to hear they work with 520nm. I saw them but as it didn't specify assume they were for 532nm.

    Thanks!

  4. #4
    Join Date
    Feb 2008
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    East Sussex, England
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    Default

    It says all green wavelengths in the description. Could always just shoot Rob a PM or email and check

    'Assume nothing' I think someone insightful once said, sometime...
    Frikkin Lasers
    http://www.frikkinlasers.co.uk

    You are using Bonetti's defense against me, ah?

    I thought it fitting, considering the rocky terrain.

  5. #5
    Join Date
    Nov 2014
    Location
    mid michigan
    Posts
    792

    Default

    I had forgotten but what was reason for shifting the polarization for an RGB projector?
    Polk SDA SRS, Parasound HCA 3500, Luxman M117, Onkyo 504, 7.62X39, sometimes a ball on a string is the greatest of toys for us nonhuman types. oh and some lasers, lots of lasers

  6. #6
    Join Date
    Feb 2008
    Location
    East Sussex, England
    Posts
    5,244

    Default

    Its got nothing to do with RGB projectors specifically.

    Adjusting polarization allows you to combine 2 or more beams with a PBS cube whilst maintaining the same orientation of the 'stripe' in multi-mode diodes. This is important where correction is applied after combining by cylindrical lenses or prisms.

    Usually with diodes of the same wavelength (although not necessarily - but it's easier/cheaper to combine different wavelength diodes with a dichro filter)
    Frikkin Lasers
    http://www.frikkinlasers.co.uk

    You are using Bonetti's defense against me, ah?

    I thought it fitting, considering the rocky terrain.

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