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    Fresnel Lenses
    Experiments, Labs, Theses and Dissertations, Patents
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    Fresnel Lenses Experiments and Studies

      Definition

      A Fresnel lens design uses grooves embedded into the surface of a thin plastic or glass sheet refracting light like small prisms thus enabling the construction of light lenses that are much thinner and passing more light than older lens designs. Fresnel lenses are mainly used in light gathering applications like solar concentrators but are not efficient as magnifiers due to the high level of distortion.

      Solar Concentrators use mirrors or lenses, like Fresnel lenses, to concentrate sunlight for electrical power generation which is produced when the concentrated light is converted into heat which drives a steam turbine connected to an electrical power generator.

      Background Information

    • Fresnel lens - Wikipedia [View Resource]
    • How the Fresnel lens works [View Resource]
    • Lighthouse Fresnel lens pictures [View Resource]
    • How does a Fresnel lens work? [View Resource]
    • The History of Modern Concentrators [View Resource]
    • Augustin-Jean Fresnel Life and Work [View Resource]

      K-12 Experiments, Labs, Science Fair Projects

    • Will lenses improve the efficiency of a solar panel? [View Experiment]
    • Build and test a flash extender for a camera's flash attachment using a Fresnel lens. How far will you be able to extend the range of your flash? [View Experiment]
    • Fresnel Lens Focuser Project [View Experiment]
    • Does a Fresnel Lens Affect the Output of a Solar Cell? [View Experiment]
    • Does a Fresnel Lens Affect the Output of a Solar Cell? [View Experiment]

      College Experiments, Labs, Studies and Articles

    • Random Destructive Acts via Focused Solar Radiation [View Experiment]
    • Infinitely large solar furnace [View Experiment]
    • Prism peak rounding in injection molded Fresnel lens solar concentrators [View Experiment]
    • Electrically Switchable Fresnel Lens Based on a Liquid Crystal Film with a Polymer Relief Pattern [View Experiment]
    • Utilization of Fresnel lens solar collector in water heating for desalination by humidification-dehumidification process [View Experiment]
    • High-efficiency Fresnel acoustic lenses [View Experiment]
    • Laboratory Report: The Fresnel Biprism [View Experiment]
    • Fourier series analysis of Fractal lenses - theory and experiments with a liquid crystal display [View Experiment]
    • Large Diameter Refractive Fresnel Lenses as Low-Cost Optical Communication Ground Receiver Aperture [View Experiment]

      Theses and Dissertations

    • Development of a deep silicon phase Fresnel lens using gray-scale lithography and deep reactive ion etching [View Thesis]
    • Fresnel Phase Plates as Reconfigurable Microfluidic Lenses [View Thesis]

      Patents

    • Fresnel lens with aspiteric grooves (US Patent 4787722, 1988) [View Patent]
    • Tracking solar energy conversion unit adapted for field assembly (US Patent 6020554, 2000) [View Patent]
    • Condenser (US Patent 1333303, 1920) [View Patent]



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