File:Split-flap display.jpg
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Size of this preview: 800 × 551 pixels. Other resolutions: 320 × 220 pixels | 640 × 441 pixels | 1,024 × 705 pixels | 1,280 × 881 pixels | 2,945 × 2,028 pixels.
Original file (2,945 × 2,028 pixels, file size: 3.98 MB, MIME type: image/jpeg)
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Summary
[edit]DescriptionSplit-flap display.jpg |
English: Mechanism of a "split-flap" alarm clock, removed from its case. It displays the time digitally on flaps mounted on wheels. The inset shows the metal tab holding back the top flap. Each complete turn of a wheel advances the wheel on its left by one flap. The wheels are turned by an electric motor (visible in the back) synchronized to the oscillations of the AC current from the wall plug. Therefore, unlike later quartz digital clocks, this is a synchronous clock which is kept to the correct time by the 50/60 Hz AC power grid. The narrow numbered wheel and knobs on the left are the alarm mechanism.
Deutsch: Typische Fallblattanzeige in einem Uhrenradio |
Date | |
Source | Own work Foto und Fotomontage selbst erstellt |
Author | Reinraum |
Deutsches Museum München 2010
Licensing
[edit]Public domainPublic domainfalsefalse |
I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
Annotations InfoField | This image is annotated: View the annotations at Commons |
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Deutsch: Synchronmotor für den Antrieb
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 21:57, 19 September 2010 | 2,945 × 2,028 (3.98 MB) | Reinraum (talk | contribs) | scale | |
21:52, 19 September 2010 | 3,101 × 2,028 (4.19 MB) | Reinraum (talk | contribs) | {{Information |Description={{en|1=Split-flap display}} {{de|1=Typische Fallblattanzeige in einem Uhrenradio}} |Source={{own}} Foto und Fotomontage selbst erstellt |Author=Reinraum |Date=19. September 2010 |Permission= |other_versions= }} |
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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.
Camera manufacturer | Panasonic |
---|---|
Camera model | DMC-LX2 |
Exposure time | 1/40 sec (0.025) |
F-number | f/3.6 |
ISO speed rating | 100 |
Date and time of data generation | 14:36, 19 September 2010 |
Lens focal length | 11.6 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Paint.NET v3.36 |
File change date and time | 14:36, 19 September 2010 |
Y and C positioning | Co-sited |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 52 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 14:36, 19 September 2010 |
Image compression mode | 4 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Color space | sRGB |
Sensing method | One-chip color area sensor |