|
Gooseneck Lamp
A gooseneck lamp is a type of light fixture in which a lamp or lightbulb is attached to a flexible, adjustable shaft known as a " gooseneck" to allow the user to position the light source without moving the fixture or item to be illuminated. Gooseneck lamps are often used to position a light for reading, or in industry, to provide spot illumination for machining operations. These lamps can come in any color. Gooseneck lamps may be free standing floor lamps, desk lamps, or have magnetic bases in industrial applications. File:Detail Schwanenhals Leuchte waagerecht.jpg, Detail of gooseneck lamp File:Schwanenhals 1.gif, Schematic diagram File:Schwanenhals 2.gif, Schematic diagram (bent) References See also * Balanced-arm lamp A balanced-arm lamp, sometimes called a floating arm lamp, is a lamp with an adjustable folding arm which is constructed such that the force due to gravity is always counteracted by springs, regardless of the position of the arms of the lamp. Many ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Light Fixture
A light fixture (US English), light fitting (UK English), or luminaire is an electrical device containing an electric lamp that provides illumination. All light fixtures have a fixture body and one or more lamps. The lamps may be in sockets for easy replacement—or, in the case of some LED fixtures, hard-wired in place. Fixtures may also have a switch to control the light, either attached to the lamp body or attached to the power cable. Permanent light fixtures, such as dining room chandeliers, may have no switch on the fixture itself, but rely on a wall switch. Fixtures require an electrical connection to a power source, typically AC mains power, but some run on battery power for camping or emergency lights. Permanent lighting fixtures are directly wired. Movable lamps have a plug and cord that plugs into a wall socket. Light fixtures may also have other features, such as reflectors for directing the light, an aperture (with or without a lens), an outer shell or housing f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamp (electrical Component)
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, bayonet cap. The three main categories of electric lights are incandescent lamps, which produce light by a Incandescent light bulb#Filament, filament heated white-hot by electric current, gas-discharge lamps, which produce light by means of an electric arc through a gas, such as fluorescent lamps, and LED lamps, which produce light by a flow of electrons across a band gap in a semiconductor. Before electric lighting became common in the early 20th century, people used candles, gas lighting, gas lights, oil lamps, and fires. Vasily Vladimirovich Petr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lightbulb
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 cap. The three main categories of electric lights are incandescent lamps, which produce light by a filament heated white-hot by electric current, gas-discharge lamps, which produce light by means of an electric arc through a gas, such as fluorescent lamps, and LED lamps, which produce light by a flow of electrons across a band gap in a semiconductor. Before electric lighting became common in the early 20th century, people used candles, gas lights, oil lamps, and fires. Vasily Vladimirovich Petrov developed the first persistent electric arc in 1802, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gooseneck (fixture)
A gooseneck is a semi-rigid, flexible joining element made from a coiled metal hose. Similar to its natural counterpart, it can be bent in almost any direction and remain in that position. Areas of application for goosenecks are movable brackets for lights, magnifying glasses, microphones and other devices. The hollow shape of the gooseneck allows electrical cables or fiber-optic cables to be accommodated inside, for example. Construction A gooseneck contains a wire with a round cross-section inside, which is shaped like a spring in the shape of a helix. A wire with a triangular cross-section is wound around this, so that the tips of the triangle protrude between the round wires into the inner spiral. If the gooseneck is bent in one direction, the distance between the round wires is slightly larger on the outside and slightly smaller on the inside. Correspondingly, the tips of the triangles slip outside between the round wires or are pushed out inside. The bend in the goos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balanced-arm Lamp
A balanced-arm lamp, sometimes called a floating arm lamp, is a lamp with an adjustable folding arm which is constructed such that the force due to gravity is always counteracted by springs, regardless of the position of the arms of the lamp. Many lamp brands (such as the Anglepoise, originator of the concept, and Luxo L-1), as well as other devices, use this principle. Configuration The five terms This article uses the terminology: * ''lamp cap'', * ''forearm'', * ''upper arm'', * ''stand'' or ''body'' and * ''base'' for the five basic parts of these lamps. The general design A balanced-arm lamp has a ''base'', a ''stand'' or ''body'', (in most cases) ''two'' connected ''arms'' (in many cases fitted with springs), and a ''lamp-head''. The lamp can be moved into almost any position, and the balancing device will maintain the position until moved again. The same overall mechanism can be employed in ''other'' devices with similar requirements, such as: * copy holders for t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
