File:System of electric lighting - Nikola Tesla US patent 454622 fig1.png
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[edit]DescriptionSystem of electric lighting - Nikola Tesla US patent 454622 fig1.png |
English: Diagram of single wire high frequency lighting system, fig. 1 from Nikola Tesla's US patent no. 454622 System of electric lighting granted June 23, 1891. This is important because it contains the first appearance of his Tesla coil circuit, a resonant transformer which generates high voltage high frequency alternating current (AC). The Tesla coil circuit is in the upper left consisting of a AC generator (G) powering a step-up transformer (P,S) which charges a capacitor (C) which discharges through the spark gap (a) and the primary (P')of the resonant transformer, creating high frequency oscillating currents. The secondary of the transformer (S') produces high voltage pulses. In Tesla's lighting system the high voltage pulses power prototype single electrode fluorescent light bulbs. These consist of a parially evacuated glass bulb with a single electrode. The high potential ionizes the gas producing a glow discharge The other end of the coil is attached to an electrode in the wall of the room (W) |
Date | |
Source | Retrieved from US Patent No. 454622, Nikola Tesla System for electric lighting, filed April 23, 1891, granted June 25, 1891 on Google patent search |
Author | Nikola Tesla |
Licensing
[edit]Public domainPublic domainfalsefalse |
In general, the contents of United States patents are in the public domain.
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The original patent should be checked for the presence of such language before an assumption is made that the contents are in the public domain. (This template can be replaced by {{PD-US-patent-no notice}} in such cases.) |
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Horizontal resolution | 28.35 dpc |
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File change date and time | 05:51, 21 April 2015 |