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Thread: Need better galvo mirrors

  1. #1
    Join Date
    Apr 2008
    Location
    Amsterdam, NL
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    Default Need better galvo mirrors

    I was testing my setup with a laser power meter and I discovered I loose allot of power at my galvo mirrors.


    The loss on the galvo mirror for red and green was about 25% and on blue even 50%!!

    from my 90mW blue only 45mW exited from the galvos.

    The mirrors are cheap chines mirrors from laserworld.

    Can anybody advice some good mirrors?

    I can get dt40pro mirrors, are they any good?

  2. #2
    Join Date
    Dec 2006
    Location
    Pflugerville, TX, USA
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    Default

    Beats me but I am in the same boat. If you find some good replacements please PM me or post here.

  3. #3
    Join Date
    Jul 2006
    Location
    Connecticut, USA
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    Default

    the new mirrors on the scanners from lasershowparts are >98% reflective. i just got a set of 40ks.

    ask dave or ajaii for a replacement pair of mirrors! OR, a new set of galvos. i think youll be happy!

    -Marc
    http://www.laserist.org/images/ildalogos/ILDA-logo_colored-beams_Corporate_150w.jpg

    ILDA- U.S. Laser Regulatory Committee

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  4. #4
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    Apr 2008
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    Default

    Did you also measured the losses? my crappy mirrors also are quoted for 95% but at 473nm they are loosing 50%

  5. #5
    Join Date
    Dec 2006
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    Pflugerville, TX, USA
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    Default

    Yea, the specs for my galvos say the mirrors are >98% reflective. So, specs don't mean Jack.

  6. #6
    Join Date
    Jul 2008
    Location
    Eugene Oregon
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    Default

    from the reviews of the scanpro galvos from buffo they are supposed to be pretty amazing! especially the new 50k ones!

    talk to adam and he will tell you!

    also lasershowparts sell replacement mirrors
    -Josh

  7. #7
    Join Date
    Jan 2006
    Location
    Charleston, SC
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    Smile

    Agreed - get a set of mirrors from Lasershowparts.com The new ones that they have on *all* the ScanPro scanners (note: not just the ScanPro50's) are the cat's meow! Thicker mirror for less resonance, and better than 98% reflectance.

    Send a PM to Dave or Aijii here on the forum and see what it will cost to have a set of mirrors shipped to you.

    Adam

  8. #8
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    Default

    If they are thicker will they fit in the slot?

  9. #9
    Join Date
    Jan 2006
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    Charleston, SC
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    Cool

    Good question Gary. I don't know.

    The old mirrors were .4 mm I think. I'm pretty sure these new ones are at least .6 mm thick, maybe more than that.

    The "tabs" on the scanner shaft appear to be flexible though. Wonder if they'd just slide right in anyway? Would be a good question to ask Dave or Aijii...

    Adam

  10. #10
    Join Date
    Dec 2006
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    Default

    I sent and email to LaserShowParts and also to the company in China who sold me the scanners. I'll let you know if I find out anything.

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