The fresnel design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be re
A Fresnel lens is a type of lens that is made up of a series of thin, concentric rings, rather than a single solid piece of glass. The design of the lens allows it to be much thinner and lighter than traditional lenses of the same size and power. Fresnel lenses are commonly used in lighthouses and other applications that require a powerful, concentrated beam of light. The lens can be designed to create either a focused beam or a wide-angle beam, depending on the application. The invention of the Fresnel lens in the 19th century revolutionized the field of lighthouse technology, allowing for the creation of larger and more powerful beacons that could warn ships of dangerous coastal areas from greater distances. Lighthouse Light; Cape Florida Lighthouse which is one of the most celebrated landmarks owned by the State of Florida. The historic compound in Bill Baggs State Park and Recreation Area includes the newly restored, 95-foot white-brick tower and a replica of the lighthouse keeper's 1825 cottage, delighting visitors as well as residents of this subtropical island of Key Biscayne. Graceful coconut palms line the walkway toward the ocean and grand historic monument.
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Photo credit: © Phil Degginger / Alamy / Afripics
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Keywords: baggs, beacon, bill, biscayne, cape, fl, florida, fresnel, key, lens, light, lighthouse, park, state
