Size of this preview: 568 × 599 pixels. Other resolutions: 227 × 240 pixels | 455 × 480 pixels | 668 × 705 pixels.
Original file (668 × 705 pixels, file size: 90 KB, 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. |
|
This file has been superseded by Zworykin1931iconoscope.png. It is recommended to use the other file. Please note that deleting superseded images requires consent.
|
|
Summary
| Description |
English: First diagram of an iconoscope television camera tube, one of the earliest practical video camera tubes, invented by Vladimir Zworykin, from his 1931 US patent. Zworykin patented the tube for use as an ultraviolet video microscope, but applied it to the new expanding technology of television. |
| Date | Filed 1931, patent issued 1935 |
| Source | U.S. Patent Office |
| Author | Vladimir Zworykin |
| Permission (Reusing this file) |
public domain work of U.S. government |
Licensing
|
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
|
 |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | ||
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 23:21, 14 March 2008 | | 668 × 705 (90 KB) | Walloon | {{Information |Description= Diagram of Iconoscope television camera tube |Source= U.S. Patent Office |Date=Filed 1931, patent issued 1935 |Author= Vladimir Zworykin |Permission= public domain work of U.S. government |other_versions= }} |
File usage
No pages on the English Wikipedia use this file (pages on other projects are not listed).
