Lighthouses
by Russian Naval Lieutenant Lavrentiy Alekseyevich Zagoskin on sighting the Lighthouse at Sitka, Alaska, in 1839!!
The Hillsboro Lighthouse is fitted with an original Second Order bivalve Fresnel lens. Manufactured with the encryption: "Phares & Fanaux, Barbier, Benard & Turenne, 82 Rue Curial, Paris", the lens consists of concentric prisms arranged in panels around a central bullseye; its twin halves resembling a bivalve shell. A mercury float trough was once used but today a ball bearing system in oil supports the 2 and 1/2 ton lens. Known as the "big diamond' this light shines 28 nautical miles out to sea. The source of illumination is the twin 1000 watt lamp arrangement shown.
LighthousesHistoric LightsFlorida LightsHillsboro Light Station. Coast Guard LightsDeerfieldPompano BeachHillsboro InletLighthouse PointBiValveFresenel LensPhares FanauxBarbierBenard and TureenRue CurialParis
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