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Neon sign. The neon sign is an evolution of the earlier Geissler tube, [11] which is a sealed glass tube containing a "rarefied" gas (the gas pressure in the tube is well below atmospheric pressure). When a voltage is applied to electrodes inserted through the glass, an electrical glow discharge results.
Neon sign in Falls Church, Virginia. When Georges Claude demonstrated an impressive, practical form of neon tube lighting in 1910, he apparently envisioned that it would be used as a form of lighting, which had been the application of the earlier Moore tubes that were based on nitrogen and carbon dioxide discharges.
In neon signs, neon produces an unmistakable bright reddish-orange light when electric current passes through it under low pressure. [55] Although tube lights with other colors are often called "neon", they use different noble gases or varied colors of fluorescent lighting, for example, argon produces a lavender or blue hue. [56]
The first museum devoted to art that incorporates neon lighting, it only exhibits art in electric media, including kinetic art and outstanding examples of historic neon signs. [1] The collection includes neon signs from the Brown Derby and Grauman's Chinese Theatre .
The Pepsi-Cola sign is a neon sign at Gantry Plaza State Park in the Long Island City neighborhood of Queens in New York City. The sign, visible from Manhattan and the East River , was built in 1940 and originally installed atop PepsiCo (previously Pepsi-Cola)'s bottling factory nearby.
Neon lighting, a widely used form of cold-cathode specialty lighting consisting of long tubes filled with various gases at low pressure excited by high voltages, used as advertising in neon signs. Low pressure sodium lamps , the most efficient gas-discharge lamp type, producing up to 200 lumens per watt, but at the expense of very poor color ...
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