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3 comments:
I didn't know how sunglasses were made until now. I don't know why you would really want sunglasses that only blocked reflected light or lets half of the rays through. It amazing how many layers there are in the lens.
yeah, I was amazed at how many different types of lenses there were. I thought that there was only one lens and now I can really think the next time I wear sunglasses, how many layers I'm looking through
When you look at the actual sunglasses' lens, you see how thin it is (some are thicker, some are thinner). Then think that there are three layers in that lens. That's just amazing!
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