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Circuit diagram symbol for a lamp. Although known as "the old symbol", it infact means "Filament Lamp"1: Date: 5 May 2006 (original upload date) Source: No machine-readable source provided. Own work assumed (based on copyright claims). Author: No machine-readable author provided. Gustavb assumed (based on copyright claims).
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 .
Circuit diagram symbol for a lamp. Created by Gustavb using Emacs. Category:Electrical symbols: File usage. The following 2 pages use this file: Electric light;
Added diode symbols with usual continuous line in addition to the already contained vitiligoed ones: 10:22, 7 August 2014: 1,276 × 992 (297 KB) Xorx: Reverted to version as of 12:08, 14 February 2014. Trial to improve svg validator dit not work.
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.
A filament may also break, disabling the lamp. This tube failed after it had been turned on many times. Too much of the thermionic emission mix had sputtered off the cathodes, sticking to and blackening the glass. The filament of a low-pressure mercury gas-discharge lamp, with white thermionic emission coating acting as hot cathode.
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A 230-volt LED filament light bulb, with a B22 base. The filaments are visible as the four yellow vertical lines. A LED filament light bulb is a LED lamp which is designed to resemble a traditional incandescent light bulb with visible filaments for aesthetic and light distribution purposes, but with the high efficiency of light-emitting diodes (LEDs).