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The improved fresnel lens optical landing system, IFLOLS, uses a fiber optic "source" light, projected through lenses to present a sharper, crisper light. This has enabled pilots to begin to fly "the ball" further away from the ship making the transition from instrument flight to visual flight smoother.
The Fresnel lens is useful in the making of motion pictures not only because of its ability to focus the beam brighter than a typical lens, but also because the light is a relatively consistent intensity across the entire width of the beam of light. Optical landing system on US Navy aircraft carrier USS Dwight D. Eisenhower
In late 1960, the Control Instrument Company installed the first production Fresnel Lens Optical Landing System (FLOLS) onboard Franklin D. Roosevelt. She recorded her 100,000th aircraft landing in March 1961. During a 1963 overhaul, six more 5-inch (127 mm) guns were removed. [1]
Adjacent to the runway is a standard aircraft carrier optical landing system Fresnel lens. Each landing is observed and graded by a Landing Signal Officer, a pilot who has been trained in the subspecialty of teaching aviators how to safely land on an aircraft carrier. [7] [8] [9]
Fresnel lens optical landing system aboard USS Dwight D. Eisenhower. Regardless of the case recovery or approach type, the final portion of the landing (3 ⁄ 4 nautical mile (1.4 km; 0.86 mi) to touchdown) is flown visually. Line-up with the landing area is achieved by lining up painted lines on the landing area centerline with a set of lights ...
It is equipped with a Fresnel lens optical landing system (FLOLS) at each approach end, as well as lit aircraft carrier flight deck landing areas at both ends, so pilots can simulate carrier landings. Apart from touch-and-go landings and take-offs, aircrews use the many ranges at NAF El Centro to develop their skills.
A Fresnel Lens Optical Landing System (known as the Meatball, or ball) on the runway verge, as fitted to all aircraft carriers and is used to assist the pilot in completing a successful trap on the flight deck. [5]
Augustin-Jean Fresnel [Note 1] (10 May 1788 – 14 July 1827) was a French civil engineer and physicist whose research in optics led to the almost unanimous acceptance of the wave theory of light, excluding any remnant of Newton's corpuscular theory, from the late 1830s [3] until the end of the 19th century.
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