Neon lighting
Encyclopedia
Neon lighting is created by brightly glowing, electrified glass tubes or bulbs that contain rarefied neon
Neon
Neon is the chemical element that has the symbol Ne and an atomic number of 10. Although a very common element in the universe, it is rare on Earth. A colorless, inert noble gas under standard conditions, neon gives a distinct reddish-orange glow when used in either low-voltage neon glow lamps or...

 or other gases. Georges Claude
Georges Claude
Georges Claude was a French engineer and inventor. He is noted for his early work on the industrial liquefaction of air, for the invention and commercialization of neon lighting, and for a large experiment on generating energy by pumping cold seawater up from the depths...

, a French engineer and inventor, presented neon tube lighting in essentially its modern form at the Paris Motor Show from December 3–18, 1910. Claude, sometimes called "the Edison of France", had a near monopoly on the new technology, which became very popular for signage and displays in the period 1920-1940. Neon lighting was an important cultural phenomenon in the United States in that era; by 1940, the downtowns of nearly every city in the US were bright with neon signage, and Times Square
Times Square
Times Square is a major commercial intersection in the borough of Manhattan in New York City, at the junction of Broadway and Seventh Avenue and stretching from West 42nd to West 47th Streets...

 in New York City was known worldwide for its neon extravagances. There were 2000 shops nationwide designing and fabricating neon signs. The popularity, intricacy, and scale of neon signage for advertising declined in the U.S. following the Second World War (1939–1945), but development continued vigorously in Japan, Iran, and some other countries. In recent decades architects and artists, in addition to sign designers, have again adopted neon tube lighting as a component in their works.

A second technology for neon lighting, the miniature neon glow lamp
Neon lamp
A neon lamp is a miniature gas discharge lamp that typically contains neon gas at a low pressure in a glass capsule. Only a thin region adjacent to the electrodes glows in these lamps, which distinguishes them from the much longer and brighter neon tubes used for signage...

, was developed in 1917, about seven years after neon tube lighting. While neon tube lights are typically meters long, the lamps can be less than one centimeter in length and glow much more dimly than the tube lights. Through the 1970s, neon glow lamps were widely used for displays in electronics, for small decorative lamps, and as electronic devices in of themselves. While these lamps are now antiques, the technology of the neon glow lamp developed into contemporary plasma display
Plasma display
A plasma display panel is a type of flat panel display common to large TV displays or larger. They are called "plasma" displays because the technology utilizes small cells containing electrically charged ionized gases, or what are in essence chambers more commonly known as fluorescent...

s and televisions.

Neon lighting is closely related to fluorescent lighting, which developed about 25 years after neon tube lighting. In fluorescent lights, the light emitted by rarefied gases within a tube is used exclusively to excite fluorescent materials that coat the tube, which then shine with their own colors that become the tube's visible, usually white, glow. Fluorescent coatings and glasses are also an option for neon tube lighting, but are usually selected to obtain bright colors.

History and science

Neon
Neon
Neon is the chemical element that has the symbol Ne and an atomic number of 10. Although a very common element in the universe, it is rare on Earth. A colorless, inert noble gas under standard conditions, neon gives a distinct reddish-orange glow when used in either low-voltage neon glow lamps or...

 is a chemical element
Chemical element
A chemical element is a pure chemical substance consisting of one type of atom distinguished by its atomic number, which is the number of protons in its nucleus. Familiar examples of elements include carbon, oxygen, aluminum, iron, copper, gold, mercury, and lead.As of November 2011, 118 elements...

 and an inert gas
Inert gas
An inert gas is a non-reactive gas used during chemical synthesis, chemical analysis, or preservation of reactive materials. Inert gases are selected for specific settings for which they are functionally inert since the cost of the gas and the cost of purifying the gas are usually a consideration...

 that is a minor component of the Earth's atmosphere. It was discovered in 1898 by William Ramsey
William Ramsey
William Ramsey may refer to:*William Marion Ramsey , American politician and judge in Oregon*William of Ramsey, 13th century English Benedictine monk of Croyland Abbey*William Ramsey , 14th century English architect...

 and Morris W. Travers. When Ramsey and Travers had succeeded in obtaining some pure neon from the atmosphere, they explored its properties using an "electrical gas-discharge" tube
Geissler tube
A Geissler tube is an early gas discharge tube used to demonstrate the principles of electrical glow discharge. The tube was invented by the German physicist and glassblower Heinrich Geissler in 1857...

 that was similar to the tubes used today for neon signs. Travers later wrote, "the blaze of crimson light from the tube told its own story and was a sight to dwell upon and never forget." The procedure of examining the colors of the light emitted from gas-discharge (or "Geissler" tubes) was well-known at the time, since the colors of light (the "spectral lines") emitted by a gas discharge tube are, essentially, fingerprints that identify the gases inside.

Immediately following neon's discovery, neon tubes were used as scientific instruments and novelties. However, the scarcity of purified neon gas precluded its prompt application for electrical gas-discharge lighting along the lines of Moore tubes, which used more common nitrogen
Nitrogen
Nitrogen is a chemical element that has the symbol N, atomic number of 7 and atomic mass 14.00674 u. Elemental nitrogen is a colorless, odorless, tasteless, and mostly inert diatomic gas at standard conditions, constituting 78.08% by volume of Earth's atmosphere...

 or carbon dioxide
Carbon dioxide
Carbon dioxide is a naturally occurring chemical compound composed of two oxygen atoms covalently bonded to a single carbon atom...

 as the working gas, and enjoyed some commercial success in the US in the early 1900s. After 1902, Georges Claude
Georges Claude
Georges Claude was a French engineer and inventor. He is noted for his early work on the industrial liquefaction of air, for the invention and commercialization of neon lighting, and for a large experiment on generating energy by pumping cold seawater up from the depths...

's company in France, Air Liquide
Air Liquide
L'Air Liquide S.A., or Air Liquide , is a major French company supplying industrial gases and services to various industries including medical, chemical and electronic manufacturers. Founded in 1902, it is first in the world market in its field, now operating in over 80 countries. It is...

, began producing industrial quantities of neon essentially as a byproduct of the air liquefaction business. From December 3–18, 1910, Claude demonstrated two large (12 metres (39.4 ft) long), bright red neon tubes at the Paris Motor Show.

These neon tubes were essentially in their contemporary form. The range of outer diameters for the glass tubing used in neon lighting is 9 to 25 mm; with standard electrical equipment, the tubes can be as long as 30 metres (98.4 ft). The pressure of the gas inside is in the range 3-20 Torr
Torr
The torr is a non-SI unit of pressure with the ratio of 760 to 1 standard atmosphere, chosen to be roughly equal to the fluid pressure exerted by a millimetre of mercury, i.e., a pressure of 1 torr is approximately equal to 1 mmHg...

 (0.4-3 kPa), which corresponds to a partial vacuum in the tubing. Claude had also solved two technical problems that substantially shortened the working life of neon and some other gas discharge tubes, and effectively gave birth to a neon lighting industry. In 1915 a US patent was issued to Claude covering the design of the electrodes for gas-discharge lighting; this patent became the basis for the monopoly held in the US by his company, Claude Neon Lights, for neon signs through the early 1930s.

Claude's patents envisioned the use of gases such as argon
Argon
Argon is a chemical element represented by the symbol Ar. Argon has atomic number 18 and is the third element in group 18 of the periodic table . Argon is the third most common gas in the Earth's atmosphere, at 0.93%, making it more common than carbon dioxide...

 and mercury vapor to create different colors beyond those produced by neon. In the 1920s, fluorescent glasses and coatings were developed to further expand the range of colors and effects for tubes with argon gas or argon-neon mixtures; generally, the fluorescent coatings are used with an argon/mercury-vapor mixture, which emits ultraviolet
Ultraviolet
Ultraviolet light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than X-rays, in the range 10 nm to 400 nm, and energies from 3 eV to 124 eV...

 light that activates the fluorescent coatings. By the 1930s, the colors from combinations of neon tube lights had become satisfactory for some general interior lighting applications, and achieved some success in Europe, but not in the US. Since the 1950s, the development of phosphors for color televisions has created nearly 100 new colors for neon tube lighting.

Around 1917, Daniel McFarlan Moore
Daniel McFarlan Moore
Daniel McFarlan Moore was a U.S. electrical engineer and inventor. He developed a novel light source, the "Moore lamp", and a business that produced them in the early 1900s...

, then working at the General Electric Company, developed the miniature neon lamp
Neon lamp
A neon lamp is a miniature gas discharge lamp that typically contains neon gas at a low pressure in a glass capsule. Only a thin region adjacent to the electrodes glows in these lamps, which distinguishes them from the much longer and brighter neon tubes used for signage...

. The glow lamp has a very different design than the much larger neon tubes used for signage; the difference was sufficient that a separate US patent was issued for the lamp in 1919. A Smithsonian Institution website notes, "These small, low power devices use a physical principle called "coronal discharge." Moore mounted two electrodes close together in a bulb and added neon or argon gas. The electrodes would glow brightly in red or blue, depending on the gas, and the lamps lasted for years. Since the electrodes could take almost any shape imaginable, a popular application has been fanciful decorative lamps. Glow lamps found practical use as electronic components, and as indicators in instrument panels and in many home appliances until the acceptance of Light-Emitting Diodes (LEDs) starting in the 1970s."

Although some neon lamps themselves are now antiques, and their use in electronics has declined markedly, the technology has continued to develop in artistic and entertainment contexts. Neon lighting technology has been reshaped from long tubes into thin flat panels used for plasma display
Plasma display
A plasma display panel is a type of flat panel display common to large TV displays or larger. They are called "plasma" displays because the technology utilizes small cells containing electrically charged ionized gases, or what are in essence chambers more commonly known as fluorescent...

s and plasma television sets.

Neon tube lighting and signs

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. Claude's 1910 demonstration of neon lighting at the Grand Palais
Grand Palais
This article contains material abridged and translated from the French and Spanish Wikipedia.The Grand Palais des Champs-Elysées, commonly known as the Grand Palais , is a large historic site, exhibition hall and museum complex located at the Champs-Élysées in the 8th arrondissement of Paris, France...

(Grand Palace) in Paris lit a peristyle
Peristyle
In Hellenistic Greek and Roman architecture a peristyle is a columned porch or open colonnade in a building surrounding a court that may contain an internal garden. Tetrastoon is another name for this feature...

 of this large exhibition space. Claude's associate, Jacques Fonseque, realized the possibilities for a business based on signage and advertising. By 1913 a large sign for the vermouth Cinzano
Cinzano
Cinzano is an Italian brand of vermouth, a brand owned since 1999 by Gruppo Campari. It comes in four versions:*Cinzano Rosso, which is amber-coloured;*Cinzano Bianco, which is white and drier than Rosso, yet still considered a sweet vermouth;...

 illuminated the night sky in Paris, and by 1919 the entrance to the Paris Opera
Paris Opera
The Paris Opera is the primary opera company of Paris, France. It was founded in 1669 by Louis XIV as the Académie d'Opéra and shortly thereafter was placed under the leadership of Jean-Baptiste Lully and renamed the Académie Royale de Musique...

 was adorned with neon tube lighting.

Neon signage was received with particular enthusiasm in the United States. In 1923, Earle C. Anthony
Earle C. Anthony
Earle C. Anthony was a pioneer businessman based in Los Angeles, California. He is primarily known for his achievements in two fields: Broadcasting and automobiles...

 purchased two neon signs from Claude for his Packard
Packard
Packard was an American luxury-type automobile marque built by the Packard Motor Car Company of Detroit, Michigan, and later by the Studebaker-Packard Corporation of South Bend, Indiana...

 car dealership in Los Angeles, California; these literally stopped traffic. Claude's US patents had secured him a monopoly on neon signage, and following Anthony's success with neon signs, many companies arranged franchises with Claude to manufacture neon signs. In many cases companies were given exclusive licenses for the production of neon signs in a given geographical area; by 1931, the value of the neon sign business was $16.9 million, of which a significant percentage was paid to Claude Neon Lights, Inc. by the franchising arrangements. Claude's principal patent expired in 1932, which led to a great expansion in the production of neon signage. The industry's sales in 1939 were about $22.0 million; the expansion in volume from 1931 to 1939 was much larger than the ratio of sales in the two years suggests.

Rudi Stern has written, "The 1930s were years of great creativity for neon, a period when many design and animation techniques were developed. ... Men like O. J. Gude and, in particular, Douglas Leigh
Douglas Leigh
Douglas Leigh was an American advertising executive and lighting designer, and a pioneer in signage and outdoor advertising. He is famous for making New York City's Times Square the site of some of the world's most famous electric billboards...

 took neon advertising further than Georges Claude and his associates had ever envisioned. Leigh, who conceived and created the archetypal Times Square spectacular, experimented with displays that incorporated smells, fog, and sounds as part of their total effect. ... Much of the visual excitement of Times Square in the thirties was a result of Leigh's genius as a kinetic and luminal artist." Major cities throughout the United States and in several other countries also had elaborate displays of neon signs. Events such as the Chicago Century of Progress Exposition (1933–34), the Paris World's Fair (1937) and New York World's Fair (1939) were remarkable for their extensive use of neon tubes as architectural features. Stern has argued that the creation of "glorious" neon displays for movie theaters led to an association of the two, "One's joy in going to the movies became inseparably associated with neon."

The Second World War (1939–1945) arrested new sign installations around most of the world. Following the war, the industry resumed. Marcus Thielen writes of this era, "...after World War II, government programs were established to help re-educate soldiers. The Egani Institute (New York City) was one of few schools in the country that taught neon-trade secrets. The American streamlined design from the 1950s would be unimaginable without the use of neon." The development of Las Vegas, Nevada
Las Vegas, Nevada
Las Vegas is the most populous city in the U.S. state of Nevada and is also the county seat of Clark County, Nevada. Las Vegas is an internationally renowned major resort city for gambling, shopping, and fine dining. The city bills itself as The Entertainment Capital of the World, and is famous...

 as a resort city is inextricably linked with neon signage; Tom Wolfe
Tom Wolfe
Thomas Kennerly "Tom" Wolfe, Jr. is a best-selling American author and journalist. He is one of the founders of the New Journalism movement of the 1960s and 1970s.-Early life and education:...

 wrote in 1965, "Las Vegas is the only city in the world whose skyline is made neither of buildings, like New York, nor of trees, like Wilbraham, Massachusetts, but signs. One can look at Las Vegas from a mile away on route 91 and see no buildings, no trees, only signs. But such signs! They tower. They revolve, they oscillate, they soar in shapes before which the existing vocabulary of art history is helpless."

Overall, however, neon displays became less fashionable, and some cities discouraged their construction with ordinances. Nelson Algren
Nelson Algren
Nelson Algren was an American writer.-Early life:Algren was born Nelson Ahlgren Abraham in Detroit, Michigan, the son of Goldie and Gerson Abraham. At the age of three he moved with his parents to Chicago, Illinois where they lived in a working-class, immigrant neighborhood on the South Side...

 titled a 1947 collection of his short stories The Neon Wilderness. Margalit Fox
Margalit Fox
-Biography:She attended Stony Brook University and received a master's degree from the Columbia University Graduate School of Journalism. She has worked at the New York Times as a book reviewer and obituary reporter.-Bibliography:...

 has written, "... after World War II, as neon signs were replaced increasingly by fluorescent-lighted plastic, the art of bending colored tubes into sinuous, gas-filled forms began to wane." A dark age persisted at least through the 1970s, when artists adopted neon with enthusiasm; in 1979 Rudi Stern published his manifesto, Let There Be Neon. Marcus Thielen wrote in 2005, on the 90th anniversary of the US patent issued to Georges Claude, "The demand for the use of neon and cold cathode in architectural applications is growing, and the introduction of new techniques like fiberoptics and LED — into the sign market have strengthened, rather than replaced, neon technology. The evolution of the 'waste' product neon tube remains incomplete 90 years after the patent was filed."

Neon glow lamps and plasma displays


In neon glow lamps, the luminous region of the gas is a thin, "negative glow" region immediately adjacent to a negatively charged electrode (or "cathode"); the positively charged electrode ("anode") is quite close to the cathode. These features distinguish the lamps from the much longer and brighter luminous regions in neon tube lighting; technically, the latter correspond to a "positive column" in the discharge that is absent in the lamps. The energy dissipation in the lamps when they are glowing is very low (about 0.1 W), hence the distinguishing term cold-cathode lighting.

Some of the applications of neon lamps include:
  • Pilot lamps that indicate the presence of electrical power in an appliance or instrument (e.g. an electric coffee pot or power supply).
  • Decorative (or "figural") lamps in which the cathode is shaped as a flower, animal, etc.. The figures inside these lamps were typically painted with phosphorescent paints to achieve a variety of colors.
  • Active electronic circuits such as electronic oscillators, timers, memory elements, etc..
  • Intricate electronic displays such as the Nixie tube
    Nixie tube
    A nixie tube is an electronic device for displaying numerals or other information. The glass tube contains a wire-mesh anode and multiple cathodes. In most tubes, the cathodes are shaped like numerals. Applying power to one cathode surrounds it with an orange glow discharge...

     (see photograph).


The small size of the negative glow region of a neon lamp, and the flexible electronic properties that were exploited in electronic circuits, led to the adoption of this technology for the earliest plasma panel displays
Plasma display
A plasma display panel is a type of flat panel display common to large TV displays or larger. They are called "plasma" displays because the technology utilizes small cells containing electrically charged ionized gases, or what are in essence chambers more commonly known as fluorescent...

. The first monochrome dot matrix plasma panel displays were developed in 1964 at the University of Illinois for the PLATO educational computing system. They had the characteristic color of the neon lamp; their inventors, Donald L. Bitzer
Donald Bitzer
Donald L. Bitzer is an American electrical engineer and computer scientist. He was the co-inventor of the plasma display, is largely regarded as the "father of PLATO", and has made a career of improving classroom productivity by using computer and telecommunications technologies.The creation of...

, H. Gene Slottow, and Robert H. Wilson, had achieved a working computer display that remembered its own state, and did not require constant refreshing from the central computer system. The relationship between these early monochrome displays and contemporary, color plasma displays and televisions was described by Larry F. Weber in 2006, "All plasma TVs on the market today have the same features that were demonstrated in the first plasma display which was a device with only a single cell. These features include alternating sustain voltage, dielectric layer, wall charge, and a neon-based gas mixture." As in colored neon lamps, plasma displays use a gas mixture that emits ultraviolet light. Each pixel has a phosphor that emits one of the display's base colors.

Neon lighting and artists in light

The mid to late 1980's was a period of resurgence in neon production. Sign companies developed a new type of signage called channel lettering, in which individual letters were fashioned from sheet metal.

While the market for neon lighting in outdoor advertising signage has declined since the mid 20th Century, in recent decades neon lighting has been used consciously in art, both in individual objects and integrated into architecture. Frank Popper
Frank Popper
Frank Popper is a historian of art and technology and Professor Emeritus of Aesthetics and the Science of Art at the University of Paris VIII. He has been decorated with the medal of the Légion d'honneur by the French Government...

 traces the use of neon lighting as the principal element in artworks to Gyula Košice
Gyula Kosice
Gyula Kosice, born Fernando Fallik in Košice is a naturalized Argentine sculptor, plastic artist, theoretician and poet, one of the most important figures in kinetic and luminal art and luminance vanguard....

's late 1940s work in Argentina. Among the later artists whom Popper notes in a brief history of neon lighting in art are Stephen Antonakos, the conceptual artists Joseph Kosuth
Joseph Kosuth
Joseph Kosuth , is an American conceptual artist. Kosuth lives in New York and Rome.-Early life and career:Kosuth was born in Toledo, Ohio. He attended the Toledo Museum School of Design from 1955 to 1962 and studied privately under the Belgian painter Line Bloom Draper. In 1963, Kosuth enrolled at...

 and Bruce Nauman
Bruce Nauman
Bruce Nauman is a contemporary American artist. His practice spans a broad range of media including sculpture, photography, neon, video, drawing, printmaking, and performance. Nauman lives in Galisteo, New Mexico....

, Martial Raysse
Martial Raysse
Martial Raysse is a French artist born in Golfe-Juan on 12 February 1936. He lives in Issigeac - France.-Biography: Raysse was born in a ceramicist family in Vallauris and began to paint and write poetry at age 12. After studying and practising athleticism at a high level, he began to accumulate...

, Chryssa
Chryssa
Chryssa Vardea Mavromichali is a Greek American artist who works in a wide variety of media. An American art pioneer in light art and luminist sculpture widely known for her neon, steel, aluminum and acrylic glass installations, she has always used the mononym Chryssa professionally...

, Piotr Kowalski
Piotr Kowalski
Piotr Kowalski was an artist, sculptor, and architect. He was born 2 March, 1927, in Poland, and died 7 January 2004 in Paris.Piotr Kowalski worked in non-traditional materials including electronic and mechanical devices, neon, large earth works, explosions and other natural phenomena including...

, and François Morellet
François Morellet
François Morellet is a contemporary French painter, engraver, sculptor and light artist. His early work prefigured Minimal art and Conceptual art, and he has played an important role in geometrical abstraction over the past half century.-Career:After a short period of figurative/representational...

.

Several museums in the United States are now devoted to neon lighting and art, including the Museum of Neon Art
Museum of Neon Art
The Museum of Neon Art is a museum that exists to a encourage learning and curiosity through the preservation, collection, and interpretation of neon art. The museum has had several locations since its foundation; it is presently located at 136 West Fourth Street in Los Angeles, California, and is...

 (founded by neon artist Lili Lakich
Lili Lakich
Liliana Diane Lakich is an American artist best known for her work in neon sculpture. Her sculptures have been included in major publications on contemporary sculpture, neon sculpture and feminist art including Signs, and in many private and corporate collections...

, Los Angeles, 1981), the Neon Museum (Las Vegas, founded 1996), the American Sign Museum
American Sign Museum
The American Sign Museum in Walnut Hills, Cincinnati, Ohio, preserves, archives, and displays a collection of signs. The museum also displays the equipment utilized in the design and manufacture of signs. Tod Swormstedt began working on the museum in 1999...

 (Cincinnati, founded 1999), and the Neon Museum of Philadelphia (founded by Len Davidson, Philadelphia, 1985). These museums restore and display historical signage that was originally designed as advertising, in addition to presenting exhibits of neon art. Several books of photographs have also been published to draw attention to neon lighting as art. In 1994, Christian Schiess has published an anthology of photographs and interviews devoted to fifteen "light artists".

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