File:Optophone in detail.jpg
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[edit]DescriptionOptophone in detail.jpg |
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 |
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[edit]Public domainPublic domainfalsefalse |
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.
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