File:Background Illumination1937.jpg
Original file (1,440 × 1,218 pixels, file size: 642 KB, MIME type: image/jpeg)
Captions
DescriptionBackground Illumination1937.jpg |
English: "Background Illumination" for the light microscope after J. B. Reade (1837) as described by John Queckett, 1855. Description from the original publication:
a b represents the stage of the microscope in an inclined position; c a condensing lens placed below and on one side of the stage; d a lamp also placed below the stage and at some distance from it; the rays of light r r r' r' emanating from the lamp,are thrown obliquely upon the object e, and only those that are refracted by the glass, or by the object under examination, will pass through the comound body to the eye: some objects, when viewed in this way, will appear beautifully illuminated on a field of view that is nearly, if not quite, dark. Deutsch: "Background Illumination" für die Lichtmikroskopie nach J. B. Reade (1837), beschrieben von John Queckett, 1855. |
||||||
Date | |||||||
Source |
|
||||||
Author | John Queckett | ||||||
Permission (Reusing this file) |
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 15:31, 19 May 2012 | 1,440 × 1,218 (642 KB) | Dietzel65 (talk | contribs) | {{Information |Description ={{en|1="Background Illumination" for the light microscope after J. B. Reade (1837) as described by John Queckett, 1855. }} {{de|1="Background Illumination" für die Lichtmikroskopie nach J. B. Reade (1837), beschrieben vo... |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
File usage on other wikis
The following other wikis use this file:
- Usage on de.wikipedia.org
- Usage on fr.wikipedia.org
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Orientation | Normal |
---|---|
Horizontal resolution | 72 dpc |
Vertical resolution | 72 dpc |
Software used | Adobe Photoshop CS Windows |
File change date and time | 15:46, 30 March 2006 |
Color space | sRGB |
Image width | 1,440 px |
Image height | 1,218 px |
Date and time of digitizing | 16:46, 30 March 2006 |
Date metadata was last modified | 16:46, 30 March 2006 |