File:Two ultraviolet fluorescent tubes UV-C and UV-A.jpg
Original file (2,208 × 1,500 pixels, file size: 1.56 MB, MIME type: image/jpeg)
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Summary
editDescriptionTwo ultraviolet fluorescent tubes UV-C and UV-A.jpg |
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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Original upload log
edit- 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 = }}
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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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 usage on Commons
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- File:Blacklight fluorescent lamp and germicidal UV lamp.jpg (file redirect)
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Orientation | Normal |
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Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Paint Shop Pro Photo 11,20 |
File change date and time | 11:59, 6 September 2007 |
Y and C positioning | Centered |
Exif version | 2.2 |
Meaning of each component |
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DateTime subseconds | 640 |
Supported Flashpix version | 1 |
Color space | sRGB |
IIM version | 2 |