Art & Design – Most people are familiar with sunglasses that have photochromic lenses. Commercially available since 1983, the lenses darken in response to ultraviolet light and revert to clear when the exposure is removed. Though it may not seem like much of a leap from eyeglasses to windows, this technology has been slow to infiltrate the building-products marke
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I don't know why it's taken the industry so long to come up with this concept. I personally think this kind of technology should be applied to all new construction and gradually replace all windows in old construction.