File:Optophone in detail.jpg
Size of this preview: 800 × 564 pixels. Other resolutions: 320 × 225 pixels | 640 × 451 pixels | 1,024 × 721 pixels | 1,280 × 902 pixels | 1,557 × 1,097 pixels.
Original file (1,557 × 1,097 pixels, file size: 1.22 MB, MIME type: image/jpeg)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
Svenska: Detalbild av optofonen. A, brytare för den elektriska lampan; D, genomborrad skiva, placerad framför lampan och driven av en liten elektrisk motor från kommutatorn M; G, glasplåt, på vilken återgives bilden av en springa belägen ovanför skivan; H, vev, medels vilken operatören kan förflytta vagnen med lampan och skivan från höger till vänster; L, linjeväxlare, som förflyttar pulpeten, på vilken glasplåten med boken ligger. English: Detail view of the optophone. A, switch for the electric lamp; D, perforated disk, placed in front of the lamp and driven by a small electric motor from the commutator M; G, glass plate, on which the image of slit placed above the disk; H, a crank, by which the operator can move the carriage with the lamp and disk from right to left; L, a line changer, which moves the pulpit, on which the glass plate with the book rests. |
| Date | |
| Source | Scanned from a 1922 issue of the magazine Vetenskapen och livet (Swedish edition of Science & Vie) |
| Author | Unknown photographer |
Licensing
 |
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
|
 |
 |
This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.
|
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:26, 30 January 2014 | | 1,557 × 1,097 (1.22 MB) | LA2 | User created page with UploadWizard |
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
Global file usage
The following other wikis use this file:
- Usage on de.wikipedia.org
- Usage on kn.wikipedia.org
- Usage on rw.wikipedia.org
- Usage on www.wikidata.org
