File:SiC LED historic.jpg
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SiC_LED_historic.jpg (640 × 426 pixels, file size: 74 KB, MIME type: image/jpeg)
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[edit]DescriptionSiC LED historic.jpg |
English: This image shows a replication of H.J. Round's experiments in which he discovered the effect underlying the light emitting diode (LED). A negatively charged needle contacts a positively charged crystal of silicon carbide or carborundum. At a voltage of 9 V and a current of 30 mA a green glow can be observed at the contact point between needle and crystal. A more detailed version of the setup can be found at www.dlip.de
Français : Cette image montre une réplique des expériences de H.J. Rounds dans lesquelles il a découvert l'effet diode luminescente (LED). Une aiguille négativement chargée entre en contact avec un cristal positivement chargé de carbure ou de carborundum de silicium. À une tension de 9 V et à un courant de 30 mA on peut observer une lueur verte au point de contact entre l'aiguille et la goupille. Une version plus détaillée de l'installation peut être trouvée à http://www.dlip.de/?p=99 |
Date | |
Source | Own work |
Author | Biolippi |
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[edit]I, the copyright holder of this work, hereby publish it under the following license:
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:26, 8 May 2009 | 640 × 426 (74 KB) | Biolippi~commonswiki (talk | contribs) | still bugfix... | |
15:25, 8 May 2009 | 640 × 426 (96 KB) | Biolippi~commonswiki (talk | contribs) | Reverted to version as of 15:16, 8 May 2009 | ||
15:25, 8 May 2009 | 640 × 426 (74 KB) | Biolippi~commonswiki (talk | contribs) | last version was corrupted. | ||
15:23, 8 May 2009 | 640 × 426 (74 KB) | Biolippi~commonswiki (talk | contribs) | Enlargement of central part. | ||
15:16, 8 May 2009 | 640 × 426 (96 KB) | Biolippi~commonswiki (talk | contribs) | {{Information |Description={{en|1=This image shows a replication of H.J. Rounds experiments in which he discovered the effect underlying the light emitting diode (LED). A negatively charged needle contacts a positively charged crystal of silicon carbide o |
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Orientation | Normal |
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Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Software used | Adobe Photoshop CS3 Windows |
File change date and time | 17:24, 8 May 2009 |
Color space | sRGB |
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5 May 2009
image/jpeg
75,577 byte
426 pixel
640 pixel
00be23f20cbabb1e01993f96a3d5181de1ac10a2
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