File:Helium discharge tube.jpg
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Summary[edit]
| DescriptionHelium discharge tube.jpg |
English: Spectrum = gas discharge tube: the noble gas: helium He. Used with 1,8kV, 18mA, 35kHz. ≈8" length.
Deutsch: Spektralröhre = Gasentladungsröhre des Edelgases: Helium He. Betrieb mit: 1,8kV, 18mA, 35kHz. Länge ≈20cm.
Română: Spectru la descărcarea în gaze pentru gazul nobil heliu He. Condiţii: 1,8kV, 18mA, 35kHz. Lungime ≈0,2m.
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| Date | |
| Source | Own work |
| Author | Alchemist-hp (talk) (www.pse-mendelejew.de) |
| Other versions |
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This photo was taken by Alchemist-hp. If you use one of my photos, an email (account needed) or a message or direct to: my email account would be greatly appreciated. |
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Assessment[edit]
Licensing[edit]
| Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 only as 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. | 1.2 onlyhttp://www.gnu.org/licenses/old-licenses/fdl-1.2.htmlGFDL 1.2GNU Free Documentation License 1.2truetrue |
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This file is licensed under the Creative Commons ‘Attribution-NonCommercial-NonDerivative 3.0 (US)’ |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 22:42, 31 March 2010 | 3,008 × 2,008 (1.29 MB) | Alchemist-hp | Reverted to version as of 21:16, 28 February 2010, bad and unimportant crop |
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Metadata
| Camera manufacturer | PENTAX Corporation |
|---|---|
| Camera model | PENTAX *ist D |
| Exposure time | 1/45 sec (0.022222222222222) |
| F Number | f/4.5 |
| ISO speed rating | 800 |
| Date and time of data generation | 00:14, 6 October 2006 |
| Lens focal length | 34 mm |
| Orientation | Normal |
| Horizontal resolution | 72 dpi |
| Vertical resolution | 72 dpi |
| Software used | ACD Systems Digital Imaging |
| File change date and time | 22:06, 28 February 2010 |
| White point chromaticity |
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| Chromaticities of primarities |
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| Color space transformation matrix coefficients |
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| Y and C positioning | Centered |
| Exposure Program | Normal program |
| Exif version | 2.2 |
| Date and time of digitizing | 00:14, 6 October 2006 |
| Meaning of each component |
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| APEX exposure bias | 0 |
| Metering mode | Pattern |
| Flash | Flash did not fire, compulsory flash suppression |
| DateTime subseconds | 453 |
| Supported Flashpix version | 0,100 |
| Color space | Uncalibrated |
| Sensing method | One-chip color area sensor |
| File source | Digital still camera |
| Scene type | A directly photographed image |
| Custom image processing | Normal process |
| Exposure mode | Auto exposure |
| White balance | Auto white balance |
| Focal length in 35 mm film | 51 mm |
| Scene capture type | Standard |
| Contrast | Hard |
| Saturation | High saturation |
| Sharpness | Hard |
| Subject distance range | Macro |
| Supported Flashpix version | 1 |
| Image height | 3,008 px |
| Image width | 2,008 px |
| Date metadata was last modified | 21:26, 28 February 2010 |
| Unique ID of original document | xmp.did:9CFA7ECA9E24DF119508F5C4F9E2AC9E |