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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 ...
Like the incandescent soot in a luminous flame, the mantle is heated and then glows. The flame does not provide much light itself, and so a more heat-efficient non-luminous flame is preferred. Unlike simple soot, a mantle uses rare-earth elements to provide a bright white glow; the colour of the glow comes from the spectral lines of these ...
Pages in category "Incandescent light bulbs" The following 18 pages are in this category, out of 18 total. This list may not reflect recent changes. ...
The most commonly used A-series light bulb type is an A60 bulb [7] (or its inch-based equivalent, the A19 bulb [2] [4]), which is 60 mm (19 ⁄ 8 in or 2 + 3 ⁄ 8 in) wide at its widest point [3] and approximately 110 mm (4 + 3 ⁄ 8 in) in length. [8]
Sold as "specialty lighting", Edison-style incandescent lamps are exempted from the ban in most places. [ citation needed ] More contemporary "Edison light bulbs" are designed to replicate the same light color and bulb shape of the original, but offer a more energy-efficient version to Rosenzweig's popular vintage reproduction bulbs (modern ...
From Wikipedia, the free encyclopedia. Redirect page. Redirect to: Incandescence
Nernst lamps did not use a glowing tungsten filament. Instead, they used a ceramic rod that was heated to incandescence.Because the rod (unlike tungsten wire) would not further oxidize when exposed to air, there was no need to enclose it within a vacuum or noble gas environment; the burners in Nernst lamps could operate exposed to the air and were only enclosed in glass to isolate the hot ...
The Petromax lamp was created in 1910 in Germany by Max Graetz (1851–1937), who also named the brand, on the basis of a spirit lamp that was already well-known. Graetz was president of the firm Ehrich & Graetz in Berlin, which developed the lamp, and also the primary designer.