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A '''Fresnel lens''' is a lens that works like a convex lens, but which eliminates the bulk of such a lens by the use of a series of angled steps in the front surface of an otherwise flat sheet of glass or plastic. The steps are angled in such a way as to concentrate light at the focus.
 
A '''Fresnel lens''' is a lens that works like a convex lens, but which eliminates the bulk of such a lens by the use of a series of angled steps in the front surface of an otherwise flat sheet of glass or plastic. The steps are angled in such a way as to concentrate light at the focus.
 
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==Audio and video==
 
==Audio and video==
 
[[Video:4 SOLAR COOKING PASTA FRESNEL LENS STOVE OVEN SOLAR POWER|none|400px]]
 
[[Video:4 SOLAR COOKING PASTA FRESNEL LENS STOVE OVEN SOLAR POWER|none|400px]]

Revision as of 17:27, September 17, 2012

Wilson solar grill, 8-11
The Wilson Solar Grill is being designed to be able to use latent heat storage to cook after sunset, collecting the heat with a Fresnel lens.
Paul HedrickAdded by Paul Hedrick

A Fresnel lens is a lens that works like a convex lens, but which eliminates the bulk of such a lens by the use of a series of angled steps in the front surface of an otherwise flat sheet of glass or plastic. The steps are angled in such a way as to concentrate light at the focus.

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