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*[[Fresnel reflectors]] |
*[[Fresnel reflectors]] |
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*[[Wikipedia:Fresnel lens]] |
*[[Wikipedia:Fresnel lens]] |
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| + | ==External links== |
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| + | * [http://rimstar.org/renewnrg/fresnel_lens_mirror_solar_cooker_design.htm Designing a fresnel lens and mirror solar cooker] - ''rimstar.org'' |
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Revision as of 22:24, 30 December 2011
thumb|400px|right 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.
See also
External links
- Designing a fresnel lens and mirror solar cooker - rimstar.org