Lexan over lenses as a cover - good or bad ?- Mtbr.com
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  1. #1
    I like bloody ankles
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    New question here. Lexan over lenses as a cover - good or bad ?

    I'm testing various lenses using an achesalot design with 3 x R2 driven by 1a buckpuck - circlo, Ledil, and DX#01920 lenses are all being considered. Once I find the combo I'm most satisfied with, I plan to cover the front of the light with Lexan purchased from Lowes, I think it's .062", or 1.5mm.

    I notice that the Lexan advertises to filter UV rays, and I'm a bit concerned about another percentage of light loss through this layer. Is this something to be concerned with, or is the loss negligible ?

    And how have you attached the Lexan/plexi to the front of this design, just a thin layer of silicon around the edge ? The light has turned out so clean so far, and I'm afraid this could be the weak link in appearance.

    thanks

  2. #2
    MTBiker
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    If you use Ledil square lenses, they will fit almost perfectly in 1" square tubing, and no need for a lexan cover.
    We can bomb the world to pieces, but we can't bomb it into peace -Michael Franti

  3. #3
    I spelled Knievel wrong
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    I've used Lexan on several lights and while it isn't as good as A/R coated glass, it doesn't kill the output that much and it is really tough and easy to work with.

  4. #4
    I like bloody ankles
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    thanks guys, lexan siliconed to the front will be the plan unless I use the Ledil optics, then I'll just run a small silicon bead around the optics and call it good.

  5. #5
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    Lexan seems to glow when it is used as a lens. I like the way it glows to the sides, from its cut edges. I believe it increases sideways visibility.

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