Arc Lamp Britannica

tech lighting Arc Lamp Britannica

tech lighting Arc Lamp Britannica

A glowing incandescent lightbulb
Britannica ref2569
Electric arc
Figure 1 reproduction of the engraved illustrations showing the carbon arc lamp and its
Ra pendant ra suspension
Allied maker arc well light
Find this pin and more on lighting by celenarch
Electric discharge lamp
Britannica oval floor lamp by hudson furniture
1950s italian floor lamp
Doodle linear suspension
Mercury vapor lamp wikipedia
Metalarte lighting mate floor lamp by geert koster
Searchlight
The invention of the light bulb to famed american inventor thomas edison in 1880 but some 40 years before that british inventors created an arc lamp
Halogen lamp
Mackie chandelier product 67239
Charles francis brush american inventor and industrialist britannica com
Diy floor lamps 15 simple ideas that will brighten your home
Laser cut lamp

The carbon-arc electric light was demonstrated as early as 1808, and in 1858 English physicist and chemist Michael Faraday devised the first steam-powered electric generator to operate a large carbon-arc lamp for the South Foreland Lighthouse, but the carbon-arc lamp was so bright and required so…

THIS IS A DIRECTORY PAGE. Britannica does not currently have an article on this topic.

Charles Darwin Monroe Doctrine Creationism Refractive index Social science

Read Moreuse inlighthouse illumination In lighthouse: Electric lamps

After about 1912, white flame carbon arc instruments, such as the Klieg light (made by Kliegl Brothers and used for stage shows) were adapted for motion pictures. After the industry converted to sound in 1927, however, the sputtering created by carbon arcs caused them to be replaced by incandescent lighting.…

Carbon arc lamps have been used from about 1870 and from about 1910 rare-earth fluorides or oxides have been added to the carbon to create exceptional brilliance. About 1877 Col. Alphonse Mangin of the French Army invented a double spherical glass mirror that was widely…

gas arc lampJohn Norman Aldington, inventor of the gas arc lamp, 1948.Encyclopædia Britannica, Inc.

Arc lamp, device for producing light by maintaining an electric arc across a gap between two conductors; light comes from the heated ends of the conductors (usually carbon rods) as well as from the arc itself. Arc lamps are used in applications requiring great brightness, as in searchlights, large film projectors, and floodlights. The term arc lamp is usually restricted to lamps with an air gap between consumable carbon electrodes, but fluorescent and other electric discharge lamps generate light from arcs in gas-filled tubes. Some ultraviolet lamps are of the arc type.

Assorted Referencesdevelopment of electric technology In electromagnetism: Development of electromagnetic technologysource of electromagnetic radiation In spectroscopy: Broadband-light sourcesuse in theatre lighting In stagecraft: Electrification In stagecraft: Western traditionsinvention byBrush In Charles Francis BrushCrompton In Rookes Evelyn Bell CromptonYablochkov In Pavel Nikolayevich Yablochkov

Sir Humphry Davy constructed the first arc lamp (1807), using a battery of 2,000 cells to create a 100-millimetre (4-inch) arc between two charcoal sticks. When suitable electric generators became available in the late 1870s, the practical use of arc lamps began. The Yablochkov candle, an arc lamp invented by the Russian engineer Paul Yablochkov, was used for street lighting in Paris and other European cities from 1878.

By the mid-20th century the atmospheric arc lamp was used chiefly in large-wattage units for searchlights, for projectors calling for a high intensity and concentrated source, and for other special applications requiring small but powerful sources of blue and ultraviolet energy.

Read Moremotion pictures In motion-picture technology: Light sources

…generator to operate a large carbon-arc lamp for the South Foreland Lighthouse in 1858. But the carbon-arc lamp was so bright and required so much power that it was never widely used and was rapidly superseded by the simultaneous invention of the carbon-filament bulb by Thomas Edison and Joseph Swan…

Similar phenomena occur in high-pressure arc lamps, in which broadening of spectral lines occurs owing to high collision rates.…

…followed by gas lighting and arc lights, created the necessity for a more subtle use of cosmetics on the European and American stage. The actor’s palette consisted at this time of white chalk, carpenters’ blue chalk, papers impregnated with red colouring, and India ink.

Some actors were known to make…

…the construction of dynamos and arc lamps and the installation of lighting apparatus. In 1878 he invented an arc lamp with an overhead support mechanism to reduce shadow; previous lamps had been constructed with the support mechanism below the electrodes, producing noticeable shadows.

…consideration for electric power was arc lighting, in which a brilliant light is emitted by an electric spark between two electrodes. The arc lamp was too powerful for domestic use, however, and so it was limited to large installations like lighthouses, train stations, and department stores.

Commercial development of an…

More About Arc lamp7 references found in Britannica articles

Learn about this topic in these articles:Assorted Referencesdevelopment of incandescent lamp In incandescent lamp: Electric incandescent lamps

…illumination in the form of carbon arc lamps was first employed at lighthouses at an early date, even while oil lamps were still in vogue. The first of these was at South Foreland, England, in 1858, followed by a number of others. The majority of these, however, were eventually converted…

Read Morelighting systems In building construction: Lighting

Learn about this topic in these articles:uses In lamp: Modern electrical light sources

Enhance your search results page with Britannica’s FREE Chrome extension. Install now – FACTS matter.

…introduction of the electric carbon-arc lamp, which was exhibited in experimental form in 1808 by Sir Humphry Davy. The Paris Opéra developed the earliest electric arc effect—to represent a beam of sunlight—as early as 1846.

By 1860 the Paris Opéra had also developed a lightning machine, a rainbow projector,…

Arc Lamp Britannica