Switch Vision ? The World?s Only Magnetic Interchangeable Lens System

No, I’m not referring to interchangeable camera lenses, I’m talking about the lenses in your sunglasses. Switch Vision is a sports performance sunglass company with a patented interchange lens system that uses high-energy magnets embedded in the lens and frame to enable users to quickly swap lenses and easily as light conditions and activities change. [...]

Source: http://the-gadgeteer.com/2011/09/12/switch-vision-the-worlds-only-magnetic-interchangeable-lens-system/

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