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From the page: "A lens is a device for either concentrating or diverging light, usually formed from a piece of shaped glass. Analogous devices used with other types of electromagnetic radiation are also called lenses: for instance, a microwave lens can be made from paraffin wax."
Reviewed by RufusAndRemus May 21 2006, 02:15pm ( 1 review ) • wikipedia.org
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Rated by RufusAndRemus on May 21 2006, 2:15pm
From the page: "A lens is a device for either concentrating or diverging light, usually formed from a piece of shaped glass. Analogous devices used with other types of electromagnetic radiation are also called lenses: for instance, a microwave lens can be made from paraffin wax."
