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Looking for a good collimator lens

Discussion in 'Laser Cutters' started by Steven Yampolsky, Mar 3, 2019.

  1. Steven Yampolsky

    Builder

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    I have Acro laser with 5W Opt Laser with the lens that came with that laser. I have focused it several times and it cuts fine but what I noticed is a bunch of light is dispersed showing up as blue circles. That's light that should have been focused into a beam but it doesn't, making the laser beam weaker.
    How do you fight this? Is there a lens that does a better job focusing the beam?
     
  2. Peter Van Der Walt

    Peter Van Der Walt OpenBuilds Team
    Staff Member Moderator Resident Builder Project Maker Builder

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    Speak to the guys at OPT laser themselves, they sell a couple different lenses. There is a shorter focal, higher collaminate lens (but i found it doesnt help with cutting as the short focal length makes for a very narrow depth of field)
     
    Steven Yampolsky likes this.
  3. Steven Yampolsky

    Builder

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    Thank you for the advice. I wanted to get the long focal lens but their shipping charge is almost double the cost of the lens itself. I wonder if there is another source for that type of lens that is good quality.
     

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