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File:Helium discharge tube.jpg
Size of this preview: 800 × 534 pixels. Other resolutions: 320 × 214 pixels | 640 × 427 pixels | 1,024 × 684 pixels | 1,280 × 854 pixels | 3,008 × 2,008 pixels.

Original file ‎(3,008 × 2,008 pixels, file size: 1.29 MB, MIME type: image/jpeg)

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Summary

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.
Date
Source Own work
Author Alchemist-hp (talk) (www.pse-mendelejew.de)
Other versions
Neon
Argon
Krypton
Xenon
all stable noble gases

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Assessment

Quality image
Quality image

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Licensing

GNU head 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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Creative Commons License

This file is licensed under the Creative Commons ‘Attribution-NonCommercial-NonDerivative 3.0 (US)’
Licence: https://creativecommons.org/licenses/by-nc-nd/3.0/

Captions

Gas discharge spectrum for helium

Items portrayed in this file

depicts

helium

copyright status

copyrighted

copyright license

GNU Free Documentation License, version 1.2

Commons quality assessment

Wikimedia Commons quality image

inception

6 October 2006

captured with

Pentax *ist D

source of file

original creation by uploader

exposure time

0.02222222222222222222 second

f-number

4.5

focal length

34 millimetre

ISO speed

800

media type

image/jpeg

instance of

photograph

File history

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Date/TimeThumbnailDimensionsUserComment
current22:42, 31 March 2010Thumbnail for version as of 22:42, 31 March 20103,008 × 2,008 (1.29 MB)Alchemist-hpReverted to version as of 21:16, 28 February 2010, bad and unimportant crop
06:34, 31 March 2010Thumbnail for version as of 06:34, 31 March 20102,604 × 1,347 (147 KB)Materialscientistcrop, compression
21:16, 28 February 2010Thumbnail for version as of 21:16, 28 February 20103,008 × 2,008 (1.29 MB)Alchemist-hp== {{int:filedesc}} == {{Information |Description={{en|1=Spectrum = gas discarge tube: the noble gas: helium He. Used with 1,8kV, 18mA, 35kHz. ≈8" length.}} {{de|1=Spektralröhre = [[:de:Gasentlad

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Metadata

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Camera manufacturerPENTAX Corporation
Camera modelPENTAX *ist D
Exposure time1/45 sec (0.022222222222222)
F-numberf/4.5
ISO speed rating800
Date and time of data generation00:14, 6 October 2006
Lens focal length34 mm
OrientationNormal
Horizontal resolution72 dpi
Vertical resolution72 dpi
Software usedACD Systems Digital Imaging
File change date and time22:06, 28 February 2010
White point chromaticity
  • 0.313
  • 0.329
Chromaticities of primarities
  • 0.64
  • 0.33
  • 0.21
  • 0.71
  • 0.15
  • 0.06
Color space transformation matrix coefficients
  • 0.299
  • 0.587
  • 0.114
Y and C positioningCentered
Exposure ProgramNormal program
Exif version2.2
Date and time of digitizing00:14, 6 October 2006
Meaning of each component
  1. Y
  2. Cb
  3. Cr
  4. does not exist
Exposure bias0
Metering modePattern
FlashFlash did not fire, compulsory flash suppression
DateTime subseconds453
Supported Flashpix version1
Color spaceUncalibrated
Sensing methodOne-chip color area sensor
File sourceDigital still camera
Scene typeA directly photographed image
Custom image processingNormal process
Exposure modeAuto exposure
White balanceAuto white balance
Focal length in 35 mm film51 mm
Scene capture typeStandard
ContrastHard
SaturationHigh saturation
SharpnessHard
Subject distance rangeMacro
Supported Flashpix version1
Image width3,008 px
Image height2,008 px
Date metadata was last modified21:26, 28 February 2010
Unique ID of original documentxmp.did:9CFA7ECA9E24DF119508F5C4F9E2AC9E
Categories:

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