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Thread: what kind of lenses get dark on sun?

  1. #1
    Thomaston Glasses is offline Junior Member
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    Apr 2009
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    Default what kind of lenses get dark on sun?

    I would like lenses that could get dark on sun, do you know what are those lenses called?
    Thanks.

  2. #2
    Twin Groves glasses is offline Junior Member
    Join Date
    May 2009
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    10

    Default

    Quote Originally Posted by Thomaston Glasses View Post
    I would like lenses that could get dark on sun, do you know what are those lenses called?
    Thanks.
    I guess you are looking for photo chromic lenses, Photochromic Lenses automatically adjust to changing light for everyday convenient protection, everyday visual quality, and everyday visual comfort.

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