An electric light, lamp, or light bulb is an electrical component that produces light. It is the most common form of artificial lighting. Lamps usually have a base made of ceramic, metal, glass, or plastic, which secures the lamp in the socket of a light fixture, which is often called a "lamp" as well. The electrical connection to the socket may be made with a screw-thread base, two metal pins, two metal caps or a bayonet mount.
General Electric Company (GE) was an American multinational conglomerate founded in 1892, incorporated in the state of New York and headquartered in Boston. The company had several divisions, including aerospace, energy, healthcare, and finance.
An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a filament that is heated until it glows. The filament is enclosed in a glass bulb that is either evacuated or filled with inert gas to protect the filament from oxidation. Electric current is supplied to the filament by terminals or wires embedded in the glass. A bulb socket provides mechanical support and electrical connections.
Artificial lighting technology began to be developed tens of thousands of years ago and continues to be refined in the present day.
An arc lamp or arc light is a lamp that produces light by an electric arc.
A fluorescent lamp, or fluorescent tube, is a low-pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light. An electric current in the gas excites mercury vapor, which produces short-wave ultraviolet light that then causes a phosphor coating on the inside of the lamp to glow. A fluorescent lamp converts electrical energy into useful light much more efficiently than an incandescent lamp. The typical luminous efficacy of fluorescent lighting systems is 50–100 lumens per watt, several times the efficacy of incandescent bulbs with comparable light output. For comparison, the luminous efficiency of an incandescent bulb may only be 16 lumens per watt.
The National Electric Light Association (NELA) was a national United States trade association that included the operators of electric central power generation stations, electrical supply companies, electrical engineers, scientists, educational institutions and interested individuals. Founded in 1885 by George S. Bowen, Franklin S. Terry and Charles A. Brown, it represented the interests of private companies involved in the fledgling electric power industry that included companies like General Electric, Westinghouse and most of the country's electric companies. The NELA played a dominant role in promoting the interests and expansion of the U.S. commercial electric industry. The association's conventions became a major clearinghouse for technical papers covering the entire field of electricity and its development, with a special focus on the components needed for centralized power stations or power plants. In 1895 the association sponsored a conference that led to the issue of the first edition of the U.S. National Electrical Code. Its rapid growth mirrored the development of electricity in the U.S. that included regional and statewide affiliations across the country and Canada. It was the forerunner of the Edison Electric Institute. Its highly aggressive battle against municipal ownership of electric production led to extensive federal hearings between 1928 and 1935 that led to its demise. Its logo is an early depiction of Ohm's law which is "C equals E divided by R," or "the current strength in any circuit is equal to the electromotive force divided by the resistance," or the basic law of electricity. It was established in 1827 by Dr. G. S. Ohm.
A sodium-vapor lamp is a gas-discharge lamp that uses sodium in an excited state to produce light at a characteristic wavelength near 589 nm.
A compact fluorescent lamp (CFL), also called compact fluorescent light, energy-saving light and compact fluorescent tube, is a fluorescent lamp designed to replace an incandescent light bulb; some types fit into light fixtures designed for incandescent bulbs. The lamps use a tube that is curved or folded to fit into the space of an incandescent bulb, and a compact electronic ballast in the base of the lamp.
Edward Hibberd Johnson was an inventor and business associate of American inventor Thomas Alva Edison. He was involved in many of Edison's projects, and was a partner in an early organization which evolved into General Electric. When Johnson was Vice President of the Edison Electric Light Company, a predecessor of Con Edison, he created the first known electrically illuminated Christmas tree at his home in New York City in 1882. Edward H. Johnson became the Father of Electric Christmas Tree Lights.
Tungsram was a manufacturing company located in Hungary and known for their light bulbs and electronics. Established in Újpest in 1896, it initially produced telephones, wires and switchboards. The name "Tungsram" is a portmanteau of tungsten and wolfram, the two common names of the metal used for making light bulb filaments. Before becoming nationalized by the Communist government in 1945, the company was the world's third largest manufacturer of light bulbs and radiotubes, after the American General Electric and RCA companies.
Matthew Luckiesh DSc, DE, was a physicist and, as the Director of General Electric's Lighting Research Laboratory at its Nela Park National Lamps Works facility in East Cleveland, Ohio, he pursued research on light and vision. In his day, he was known as the "Father of the Science of Seeing."
Rushey Mead is an area, suburb, electoral ward and administrative division of the city of Leicester, England. The population of the ward at the 2011 census was 15,962. It comprises the northern Leicester suburb of Rushey Mead in its entirety, as well as a part of the neighbouring area, suburb and electoral ward of Belgrave and historical parts of neighbouring Northfields and Thurmaston.
Mazda was a trademarked name registered by General Electric (GE) in 1909 for incandescent light bulbs. The name was used from 1909 to 1945 in the United States by GE and Westinghouse. Mazda brand light bulbs were made for decades after 1945 outside the US. The company chose the name due to its association with Ahura Mazda, the transcendental and universal God of Zoroastrianism whose name means light of wisdom in the Avestan language.
Marvin Pipkin was an American chemist, engineer, and scientist. During his time in the United States Army, he worked on gas mask innovations. These masks were used by soldiers as well as the public during World War I for protection against chemical weapons. His innovative improvements were used through the twentieth century.
Elliot Quincy Adams was an American scientist. Chemist Gilbert N. Lewis remarked that "the two most profound scientific minds, among the people he had known, were those of E[lliot] Q Adams and Albert Einstein."
Edward E. Hammer was an engineer who was at the forefront of fluorescent lighting research. His technological contributions in incandescent, fluorescent and HID light sources earned him over 35 patents.
General Electric Research Laboratory was the first industrial research facility in the United States. Established in 1900, the lab was home to the early technological breakthroughs of General Electric and created a research and development environment that set the standard for industrial innovation for years to come. It developed into GE Global Research that now covers an array of technological research, ranging from healthcare to transportation systems, at multiple locations throughout the world. Its campus in Schenectady, New York was designated a National Historic Landmark in 1975.
Nela or NELA may refer to:
GE Lighting is a division of Savant Systems Inc. headquartered in Nela Park, East Cleveland, Ohio, United States. The company traces its origins to Thomas Edison's work on lighting in the 19th century.
