Fresnel Lens

Fresnel Lens

C027/9753 Rights Managed

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Credit: Phil Degginger/SCIENCE PHOTO LIBRARY

Caption: Lighthouse Light in Cape Florida Lighthouse which is one of the most celebrated landmarks owned by the State of Florida. The light is a fresnel design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be required by a lens of conventional design. A Fresnel lens can capture more oblique light from a light source, thus allowing the light from a lighthouse equipped with one to be visible over greater distances.

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Keywords: beacon light, cape florida lighthouse, fresnel, lens, light, lighthouse, lighthouse light, navigation, navigational tool, optics

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