NationMaster - Encyclopedia: Light emission

This page is a list of sources of light. It includes both natural and artificial sources, and both processes and devices. Image File history File links Download high resolution version (311x649, 278 KB) Summary I made this from an existing Public Domain JPEG. Licensing File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Prism splitting light Light is electromagnetic radiation with a wavelength that is visible to the eye (visible light) or, in a technical or scientific context, electromagnetic radiation of any wavelength. ...

Natural

See also Lists of astronomical objects Category: ... Bioluminescence is the production and emission of light by a living organism as the result of a chemical reaction during which chemical energy is converted to light energy. ... Genera Curtos Cyphonocerus Drilaster Ellychnia Hotaria Lampyris Lucidina Luciola- (Japanese fireflies) Photinus- (common eastern firefly) Photuris Pristolycus Pyractomena Pyrocoelia Stenocladius Fireflies (family Lampyridae), also known as lightningbugs, are nocturnal, luminous beetles. ... Binomial name Aequorea victoria (Murbach and Shearer, 1902) Aequorea victoria is a luminescent jellyfish found off the west coast of North America. ... Binomial name Euphausia superba Dana, 1850 The Antarctic krill (Euphausia superba ) is a species of krill found in the Antarctic waters of the Southern Ocean. ... Binomial name Vibrio fischeri Vibrio fischeri is a rod-shaped bacterium found globally in the marine environments. ... Lightning is a powerful natural electrostatic discharge produced during a thunderstorm. ... Aurora borealis Aurora borealis The aurora is a glow observed in the night sky, usually in the polar zone. ... Prism splitting light Sunlight in the broad sense is the total spectroscopy|spectrum of electromagnetic radiationb given off by the Sun. ... Diffuse sky radiation is solar radiation reaching the earths surface after having been scattered from the direct solar beam by molecules or suspensoids in the atmosphere. ...

Direct chemical

Lightsticks Chemoluminescence (sometimes chemiluminescence) is the emission of light (luminescence) as the result of a chemical reaction. ... Three types of lightsticks in five colours A lightstick, also called a glowstick, is a transparent plastic tube which contains chemical fluids held apart in two compartments. ... Fluorescence induced by exposure to ultraviolet light in vials containing various sized Cadmium selenide (CdSe) quantum dots. ... Phosphorescent powder under visible light, ultraviolet light, and total darkness. ...

Combustion-based

Combustion or burning is a chemical process, an exothermic reaction between a substance (the fuel) and a gas (the oxidizer), usually O2, to release heat. ... Carbide lamps (acetylene lamps) are simple lamps that produce and burn acetylene by reacting calcium carbide with water. ... The Betty lamp is thought to be of German, Austrian, or Hungarian origin. ... Butter lamps at Tango Monastery in Bhutan Butter lamps are a conspicuous feature of Tibetan Buddhist temples and monasteries throughout the Himalayas. ... A collection of lit candles on ornate candlesticks A close-up image of a candle showing the wick and the various regions of the flame. ... It has been suggested that flame be merged into this article or section. ... Gas lighting is the process of burning piped natural gas or coal gas for illumination. ... Russian wick kerosene lamp. ... Stone lantern A lantern is a portable lighting device used to illuminate broad areas. ... Antique bronze oil lamp with Christian symbol (replica) An oil lamp is a device used for lighting or for preserving a flame that is fueled by animal, vegetable or mineral oil. ... A Rushlight is a type of candle formed using the dried pith of the rush plant as its wick. ... Safety lamp is the name of a variety of lamps for safety in coal-mines against coal dust, methane, or firedamp, a highly explosive mixture of natural gas apt to accumulate in them. ... Davy lamp The Davy lamp is a candle containing safety lamp devised in 1815 by Humphry Davy. ... The Geordie lamp was invented by George Stephenson in 1815 as a solution to explosions due to firedamp in coal mines. ... A burning torch, discarded on the road in the wake of the Lewes Bonfire Night celebrations. ...

Electric

Arc lamps

The 300,000-watt Plasma Arc Lamp in the Infrared Processing Center (IPC) at Oak Ridge National Laboratory An arc lamp is a device that produces light by the sparking (or arcing, from voltaic arc or electric arc) of a high current between two carbon rod electrodes. ... A Yablochkov candle (sometimes electric candle) is a type of electric carbon arc lamp, invented in 1876 by Pavel Yablochkov. ...

Incandescent lamps

Molten glassy material glows orange with incandescence in a vitrification experiment. ... The carbon button lamp is a single-electrode incandescent lamp invented by Nikola Tesla during his effort to get around the Edison patent for the incandescent light bulb. ... An incandescent light bulb and its glowing filament. ... Green flashlight Flashlight is the NATO designation for the Yakovlev Yak-25 Soviet military jet. ... A Globar is a silicon carbide bar of 5 to 10 mm width and 20 to 50 mm length which is electrically heated up to 1800 to 3000 degrees Fahrenheit (equivalent to 982 to 1649 degrees Celsius or 1255 to 1922 Kelvin) with a downstream variable interference filter. ... Limelight is a type of stage lighting once used in theatres and music halls. ... Nernst lamp, complete, model B with cloche, DC-lamp 0. ...

Electroluminescent (EL) lamps

Animation of LCD, both unlit and with electroluminiscent backlight switched on Electroluminescence (EL) is an optical phenomenon and electrical phenomenon where a material emits light in response to an electric current passed through it, or to a strong electric field. ... Blue, green and red LEDs. ... It has been suggested that PHOLED be merged into this article or section. ... A Polymer light-emitting diode is a polymer that emits light when subjected to an electric current. ... Solid State Lighting (SSL) refers to a type of lighting that utilizes light-emitting diodes (LEDs), organic light-emitting diodes (OLED), or polymer light-emitting diodes as sources of illumination rather than electrical filaments or gas. ...

Gas discharge lamps

It has been suggested that this article or section be merged with Fluorescent lamp. ... A compact fluorescent lamp with an integrated electronic ballast A fluorescent lamp is a type of lamp that uses electricity to excite mercury vapor in argon or neon gas, resulting in a plasma that produces short-wave ultraviolet light. ... Spectrum of a black light. ... In contrast with all other electrical lamps that use electrical connections through the lamp envelope to transfer power to the lamp, in electrodeless lamps the power needed to generate light is transferred from the outside of the lamp envelope by means of (electro)magnetic fields. ... A hollow cathode lamp (HCL) is type of lamp used in physics and chemistry as a spectral line source and as a frequency tuner for light sources such as lasers. ... Lighting neon lamp, two 220/230 volt and 110 V neon lamps and a screwdriver with neon lamp inside A neon lamp is a gas discharge lamp containing neon gas (or in types with different colors also other noble gas) at low pressure. ... An eight-inch (20 cm) diameter plasma globe The effect of a conducting object (such as a hand) in close proximity to the plasma globe glass The central electrode of a plasma globe. ... Xenon flash lamp being fired. ...

High-intensity discharge lamps

High-intensity discharge (HID) lamps include the types of electrical lights: mercury vapor, metal halide, high-pressure sodium and less common, xenon short-arc lamps. ... Ceramic Discharge Metal Halide lamps are a relativly new source of light that is a variation of the Mercury-vapor lamp. ... Hydrargyrum Medium-Arc Iodide, frequently called just HMI is a mercury-halide discharge short arc lamp with a color temperature of approximately 5600K. The name is derived from Hydrargyrum, an archaic term for mercury while Iodide indicates that iodine is the halogen used to form the active compound. ... A Mercury-vapor lamp is a gas discharge lamp which uses mercury in an excited state to produce light. ... Metal halide lamps are similar to mercury vapor lamps, but instead of just mercury, they also contain sodium/scandium iodide and sometimes metals in the rare earth period combined with halogens in the halogen group of the periodic table. ... A sodium vapor lamp is a gas discharge lamp which uses sodium in an excited state to produce light. ... 15 kW Xenon short-arc lamp used in IMAX projectors Xenon arc lamps are an artificial light source. ...

Nuclear

Radioluminescence is the phenomenon by which luminescence is produced in a material by the bombardment of ionizing radiation such as beta particles. ... Self-powered lighting is a generic term describing devices that emit light continuously without an external power source. ...

Other

Categories: Incomplete lists | Light | Technology-related lists Cherenkov radiation glowing in the core of a TRIGA reactor Cherenkov radiation (also spelled Cerenkov or sometimes ÄŒerenkov) is electromagnetic radiation emitted when a charged particle passes through an insulator at a speed greater than the speed of light in the medium. ... Lasers range in size from microscopic diode lasers (top) with numerous applications, to football field sized neodymium glass lasers (bottom) used for inertial confinement fusion, nuclear weapons research and other physics experiments. ... Long exposure image of multi-bubble sonoluminescence created by a high intensity ultrasonic horn immersed in a beaker of liquid. ... The sulfur lamp is a microwave-powered electrodeless lighting system conceived by engineer Michael Ury, physicist Charles Wood and their colleagues in 1990 and further developed in 1994 by Fusion Lighting (USA), with support from the U.S. Department of Energy. ... Synchrotron radiation emerging from a beam port. ...