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A member asked:
What are eclipse glasses made of? the ones that look like regular black sunglasses.
A doctor has provided 1 answer
Eclipse glasses: Eclipse glasses are much darker than regular sunglasses- about 100,000 times darker. They are made of a polymer embedded with carbon. Eclipse glasses block almost all visible light and all of the ultraviolet (UV) radiation. Standard sunglasses do a pretty good job with UV radiation but only filter less than 20 percent of visible light.
Answered 8/23/2017
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