File:Farnsworth Image Dissector tube 1931.jpg
Farnsworth_Image_Dissector_tube_1931.jpg (544 × 285 pixels, file size: 51 KB, MIME type: image/jpeg)
Captions
Summary
editDescriptionFarnsworth Image Dissector tube 1931.jpg |
English: One of the earliest experimental video camera tubes, American engineer Philo T. Farnsworth's "image dissector" tube invented in 1930. |
Date | October 1934 |
Source | Retrieved 11 May 2024 from Electronics magazine, McGraw-Hill Co., New York, Vol.7, No.10, October 1934, p.302 without attribution. This publication's copyright would have been renewed in 1962. The Online Books record of copyright renewals for Electronics lists no renewals. Therefore it was not renewed and is in the public domain |
Author | Unknown authorUnknown author |
Licensing
editPublic domainPublic domainfalsefalse |
This work is in the public domain because it was published in the United States between 1929 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.
العربية ∙ Deutsch ∙ English ∙ español ∙ français ∙ galego ∙ italiano ∙ 日本語 ∙ 한국어 ∙ македонски ∙ português ∙ português do Brasil ∙ русский ∙ sicilianu ∙ slovenščina ∙ українська ∙ 简体中文 ∙ 繁體中文 ∙ +/− |
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 00:10, 15 May 2024 | 544 × 285 (51 KB) | Chetvorno (talk | contribs) | Uploaded a work by {{Unknown|author}} from Retrieved 11 May 2024 from [https://www.worldradiohistory.com/Archive-Electronics/30s/Electronics-1934-10.pdf Electronics magazine, McGraw-Hill Co., New York, Vol.7, No.10, October 1934, p.302] without attribution. This publication's copyright would have been renewed in 1962. The [https://onlinebooks.library.upenn.edu/webbin/cinfo/electronics Online Books record of copyright renewals for Electronics] lists no renewals. Therefore it was not renew... |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
File usage on other wikis
The following other wikis use this file:
- Usage on en.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.
Author | Chris Burks |
---|---|
Date and time of data generation | 09:37, 11 May 2024 |
Horizontal resolution | 96 dpi |
Vertical resolution | 96 dpi |
Software used | GIMP 2.10.12 |
File change date and time | 15:52, 14 May 2024 |
Date and time of digitizing | 09:37, 11 May 2024 |
DateTimeOriginal subseconds | 29 |
DateTimeDigitized subseconds | 29 |
Unique ID of original document | xmp.did:6b3652c5-d487-4b26-bf10-7cee0e95857e |