Homework question....
2007-03-12 12:52:15 · 7 answers · asked by Erica 1 in Education & Reference ➔ Homework Help
Glass I think.
2007-03-12 12:56:13 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Plastic, glass, or a type of polycarbonate plastic. Eyeglass lenses are always made of one of those three.
2007-03-12 19:55:36 · answer #2 · answered by Luna Minx 2 · 1⤊ 0⤋
Check here under Lens materials about halfway down the page.
http://en.wikipedia.org/wiki/Corrective_lens
2007-03-12 19:57:52 · answer #3 · answered by hadouken 3 · 0⤊ 0⤋
Plastic, glass, or polycarbonate material. It's always one of those three.
2007-03-12 19:55:22 · answer #4 · answered by I-Eat-Paint-Chips 3 · 1⤊ 0⤋
man this site is awesome: http://science.discovery.com/fansites/howitsmade/videogallery/videogallery.html click on the 3rd thumbnail and it will show you how they are made. i saw this on tv the other day.
2007-03-12 20:02:24 · answer #5 · answered by astroheather84 3 · 0⤊ 0⤋
Mine are polycarbonate
2007-03-12 20:01:31 · answer #6 · answered by Anonymous · 0⤊ 0⤋
http://science.howstuffworks.com/lens7.htm
2007-03-12 19:55:54 · answer #7 · answered by cmhurley64 6 · 0⤊ 0⤋