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Thread: Photochromics with AR

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    Photochromics with AR

    I remember learning that plastic photochromic lenses become more effective (darker, quicker) when coated with AR, and, based on my experience, I believe this to be true. The reason, I was taught, is that, since AR allows more light to contact or penetrate the lens, then an AR photochromic will obviously receive more light to activate the transitional process. So far, so good, except: Aren't light-sensitive lenses activated by ultraviolet light? Does an anti-reflective coating really allow more UV to reach the lens, or is there some other explanation for the improved darkening? Thanks for your help, somebody!

  2. #2
    Master OptiBoarder lensgrinder's Avatar
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    Follow this link. It is very informative and should answer your questions. Read the whole thread though.

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    Informative, thorough, and understandable. Thanks, LensGrinder.:cheers:

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    Master OptiBoarder lensgrinder's Avatar
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    No problem, but all I did was send a link, thank Jim in the Transitions forum, because he is the one who wrote it.

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