Sunglass Lens Materials and Coatings

Glass Lenses Advantages:  Exceptional scratch resistance (don't need scratch resistant coating). Excellent optical clarity. Anti-reflective (AR) coating adheres to glass very well.  Disadvantages: At least twice the weight of plastic or polycarbonate lenses. About 25 to 40 percent thicker than polycarbonate and high index plastic lenses. Can shatter or chip ...
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Polarized Sunglass Lenses

Polarized sunglass lenses have a special filter within the lens that reduces glare better than conventional sunglasses.  This glare-blocking feature makes polarized lenses the perfect choice for activities where reflective glare can be a problem - such as driving, boating, and fishing.  The History (and Physics) of Polarized Lenses Sunlight consists of light rays that radiate outwar...
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Choosing the Best Sunglass Lens Color

Choosing the Best Sunglass Lens Color
The main purpose of sunglasses is to reduce the brightness of ambient light to a more comfortable level.  The color you choose for your lenses is up to you.  However, be aware that bright or unusual lens colors may alter your color perception significantly.  For this reason, it's usually best (from a visual standpoint) to choose lenses that are gray, brown or green. The color a...
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