Lighting

thumb|right|A burning torch, discarded on the road in the wake of the Lewes Bonfire Night celebrations

anthropogenic light in the night environment, caused by excess or misdirected lighting

any device that produces light from electricity

thumb|Acropolis of Athens illuminated at night thumb|Illuminated cherry blossoms, light from the shop windows, and Japanese lantern at night in Ise, Mie, Japan

science of the measurement of light in terms of perceived brightness

thumb|250x250px|British Neoclassicism|Neoclassical silver candlestick, 1774–1775; overall height: 29.5 cm. [[Metropolitan Museum of Art (New York City).]] A candlestick (or candleholder) is a device used to hold a candle upright in place. Most candlesticks have a cup, a spike (called a "pricket"), or both to secure the candle.

thumbnail|Views of a liquid crystal display, both with electroluminescent backlight switched on (top) and switched off (bottom) Electroluminescence (EL) is an optical and electrical phenomenon, in which a material emits light in response to the passage of an electric current or to a strong electric field. This is distinct from black body light emission resulting from heat (incandescence), illumination by light (photoluminescence), chemical reactions (chemiluminescence), reactions in a liquid (electrochemiluminescence), sound (sonoluminescence), or other mechanical action (mechanoluminescence),

property of light sources related to black-body radiation

thumb|upright=1.35|Illumination flares being used during military training exercises thumb|upright=1.35|Flares being fired from a ship during a fleet review

'''''' (; or "what is put into the scene") is the stage design and arrangement of actors in scenes for a theatre or film production, both in the visual arts through storyboarding, visual themes, and cinematography and in narrative-storytelling through directions. The term is also commonly used to refer to single scenes that are representative of a film.

thumb|Candelabra with lit candles A candelabrum ( candelabra or candelabrums) or candelabra ( candelabras) is a type of candlestick which has multiple branches to hold several candles as opposed to only one. "Candelabra" can be used to describe a variety of candle holders including chandeliers. However, candelabra can also be distinguished as freestanding branched candle holders that are placed on a surface such as the floor, a stand, or a tabletop. Chandeliers, on the other hand, are hung from the ceiling.

light meter used in photography

measure of how well a light source produces visible light

type of artificial light

Italian architect and designer (1917–2007)

thumb|Example of phosphorescence thumb|Monochrome monitor thumb|Aperture grille CRT phosphors

thumb|Skylight in the rotunda of Centro Cultural Banco do Brasil in [[Rio de Janeiro]] thumb|Oculus (architecture)|Oculus of the [[Pantheon, Rome, an open skylight]] thumb|Skylight in the vault in the Chapel of the Constable of the Burgos Cathedral, a glazed closed skylight from the 15th century

self-contained, short-term light-source

oil obtained from the blubber of whales

plasma formed by the passage of electric current through a gas

thumb|A common dual dimmer module used in stage lighting thumb|A dimmer

spherical object, covered by many mirrored facets, mounted above a crowd, rotated, and illuminated by spotlights, producing a complex display

measure of the ability of a light source to reproduce the colors in comparison with an ideal or natural light source

architectural element that transmits light for the purpose of illumination

protocol for communication

battery-powered backup light that automatically activates in a power outage

practice of using daylight in building by windows or other openings

light source affixed to the head

electric light, used to stimulate plant growth

illumination devices attached to bicycles

Candlepower (abbreviated as cp or CP) is a unit of measurement for luminous intensity. It expresses levels of light intensity relative to the light emitted by a candle of specific size and constituents. The historical candlepower is equal to 0.981 candelas. In modern usage, candlepower is sometimes used as a synonym for candela.

trademark for network-based product

use of gaseous tritium to create visible light

intelligent network based lighting control solution

thumb|upright 0.9|Lithophane of Frederick the Great, lit from front. After a well known painting by [[Julius Schrader (1849).]] thumb|The same lithophane, backlit

art genre that uses sound and light as a medium

thumb|Lightwell

illumination of the surface behind displays

artificial illuminating gas similar to propane

brand of wirelessly-controlled LED lighting

Candoluminescence is the light given off by certain materials at elevated temperatures (usually when exposed to a flame) that has an intensity at some wavelengths which can, through chemical action in flames, be higher than the blackbody emission expected from incandescence at the same temperature. The phenomenon is notable in certain transition-metal and rare-earth oxide materials (ceramics) such as zinc oxide, cerium(IV) oxide and thorium dioxide.

unit of luminous intensity

Method of specimen illumination used in optical microscopy

display made with electroluminescent material

thumb|right|Lampenflora in the Kubacher Kristallhöhle thumb|Moss in the UNESCO World Heritage Cave Hohler Fels

concept in photography

Actinism is the property of solar radiation that leads to the production of photochemical and photobiological effects. It is important in chemical photography and x-ray imaging, and causes sunburn and photodegradation of materials. Actinic chemicals include silver salts used in photography and other light-sensitive chemicals.

Observation of LED production efficiency

Timed electrical lighting switch

technology that improves visibility for military forces operating in difficult light conditions

flame lamp used in photometry

light focused on a particular area or object

capacitive light source in the form of a wire

A Globar is used as a thermal light source for infrared spectroscopy. The preferred material for making Globar is silicon carbide that is shaped as rods or arches of various sizes. When inserted into a circuit that provides it with electric current, it emits radiation from ~ 2 to 50 micrometres wavelength via the Joule heating phenomenon. In 1962, a study showed that the emissivity of a SiC Globar between a wavelength of 0.65µm and 14.9µm ranged between 0.70 and 0.84. In 2007, research on the emissivity of Globar used computer modelling to attempt to compensate for the effect of atmospheric wa

lighting equipment of Japan

power per unit area per unit wavelength of a wavelength concentration, important for a substance's transmittance, reflectivity, and absorbance

candle used in the First and Second World Wars, type of trench candle

thumb|right|Manual (1), and Eilhard Mitscherlich|Mitscherlich's optical (2) goniometers for use in crystallography, c. 1900 A goniophotometer is a photometer for measuring the directional light distribution characteristics of light sources, luminaires, optical media, and surfaces. A goniophotometer typically incorporates a goniometer that measures direction using spherical coordinates to capture the angular distribution of the transmitted, emitted, or reflected light. A gonioradiometer differs only in that it is a radiometer (i.e., is not specific to human vision), rather than a photometer.

electrically illuminated trail