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Height: 11 metres (36 ft) Shape: Cylindrical tower with balcony and lantern: Markings: Red tower with a broad white band, black lantern: Power source: solar power Light; Focal height: 22.5 metres (74 ft) Range: White: 10 nautical miles (19 km; 12 mi) Red: 7 nautical miles (13 km; 8.1 mi) [1] Characteristic: Fl WR 5s. [1]
The lantern of Makapuu Point Light, showing the hyperradiant lens within; note the people on the gallery Hyper-radial or hyperradiant Fresnel lenses are Fresnel lenses used in lighthouses . They are larger than "first-order" lenses , having a focal length (radius) of 1330 mm (52.36 inches).
Solight Design's co-founder, Alice Chun, is an architecture professor interested in solar-powered light. As explained in Chun's 2016 TEDx talk, [4] in dealing with her son's asthma –about 10% of children in New York have asthma [5] –Chun realized that poor air quality caused by pollutants was a growing problem, motivating Chun to find ways to incorporate solar power into daily living.
The new light consisted of a 36-inch (0.91 m) aviation-type rotating beacon of 250,000 candlepower, visible 20 miles (32 km), and flashing white every 7.5 seconds. The steel skeleton tower, known as the Buxton Woods Tower , was retained by the Coast Guard in the event that the brick tower again became endangered by erosion requiring that the ...
The apparatus is installed on a gear-less pedestal, rotating three times per minute, [5] showing a light characteristic of one white flash every 10 seconds (Fl.W. 10s). [8] The light intensity is 260,000 cd [5] and the light is visible for 22 nautical miles (41 km; 25 mi). [5] The light is solar powered, and it was the first of its kind in ...
It was the first lighthouse in Australia to utilise locally manufactured optics, and became the first Australian lighthouse to use solar power in 1977. [1] [2] The 11-metre (36 ft) tall tower has a range of 11 nautical miles (20 km; 13 mi). [3]