File:Two ultraviolet fluorescent tubes UV-C and UV-A.jpg
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| Description |
Italiano: Due lampadine al neon ad emissione di raggi ultravioletti, Rispettivamente UV-A e UV-C
English: Two fluorescent lamps which emit ultraviolet light.
(Top) A "black light" tube which emits long wave UV-A light, and very little visible light. The inside of the tube has a fluorescent coating (europium-doped strontium borate) which converts the short wave UV from the mercury vapor inside to UV-A light at 350 - 370 nm. The tube has a dark blue optical filter coating which filters out most visible light. Black lights are used for observing fluorescence, the dim colored glow which many substances emit when exposed to UV light. (Bottom) A tube which emits short wave UV-C radiation, used for germicidal lamps. It contains mercury vapor which radiates UV at 253 nm. The envelope is made of quartz, which is transparent to UV-C. |
| Date | 06/09/2007 12.03 |
| Source |
Transferred from it.wikipedia to Commons.wiki/File:NeonUV.jpg transfer was stated to be made by User:Chetvorno. Original text: proprio lavoro |
| Author | Fabexplosive |
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | |
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Original upload log edit
The original description page was here. All following user names refer to it.wikipedia.
- 2007-09-06 10:04 Fabexplosive 2208×1500× (1632650 bytes) {{Informazioni file |Descrizione = Due lampadine al neon ad emissione di raggi ultravioletti |Fonte = proprio lavoro |Data = 12.03 |Autore = Fabexplosive |Licenza = }}
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:06, 29 July 2012 | | 2,208 × 1,500 (1.56 MB) | Chetvorno (talk | contribs) | Uploaded a higher resolution version of original image |
| 20:40, 28 July 2012 |  | 2,208 × 1,500 (1.56 MB) | Chetvorno (talk | contribs) | {{Information |Description={{it|<br /> ''(Bottom)'' A tube which emits short wave UV-C radiation, used for germicidal lamps. It contains mercury vapor which radiates UV in two spectral lines at 253 and 185 nm. The envelope is made of silica, which is... |
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- File:Blacklight fluorescent lamp and germicidal UV lamp.jpg (file redirect)
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