History of Eye Glasses
Making of Eye Glasses
In the present century, eyeglasses are made using plastic, due to the durability and lightweight as compared to the use of glass. Around 20% of glasses are made using actual glass in the making of eyeglasses, while the rest is polycarbonate plastic. The process of making eyeglasses is relatively the same between glass and plastic. The video below describes how polycarbonate glasses are made, the video ends at 5:21 for the description of how glasses are made. As a side note I have also found 60 minutes report about the price glasses frames and why they are so expensive: Sticker Shock: Why are glasses so expensive? This is a great video that describes why glasses are so expensive.
Interesting content on how eyeglasses are made. This is am example where the index of refraction of the glass is very important. There are a lot of potential great math connections here too.
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