GB515801A - Improvements in or relating to television and like systems employing electronic scanning devices - Google Patents
Improvements in or relating to television and like systems employing electronic scanning devicesInfo
- Publication number
- GB515801A GB515801A GB1750938A GB1750938A GB515801A GB 515801 A GB515801 A GB 515801A GB 1750938 A GB1750938 A GB 1750938A GB 1750938 A GB1750938 A GB 1750938A GB 515801 A GB515801 A GB 515801A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signals
- electrode
- cathode
- television
- photo
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/021—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof arrangements for eliminating interferences in the tube
Landscapes
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Abstract
515,801. Cathode-ray tubes. BAIRD TELEVISION, Ltd., and JONES, V. A. June 13, 1938, No. 17509. [Class 39 (i)] In order to remove " tilt and bend " effects in a television device comprising a tube having a mosaic screen scanned by a cathode-ray and a signal electrode, an auxiliary photoelectric member is provided which is illuminated by light signals produced, for example, by means such as those described in Specification 462,110 and the electrons emitted employed to modify the signals derived from the signal electrode. In the arrangement shown a photo-electric mosaic screen 2, on which the image to be transmitted is focussed and which is scanned by a cathode-ray is backed by a signal plate 3 with a photo-electric surface. This surface is illuminated from a source 5, such as fluorescent screen bombarded by a grid controlled stream of electrons controlled by suitable signals, and the electrons emitted are collected by an electrode 7 connected to the signal electrode 3 through the load resistance 9. The mosaic 2 may consist merely of conducting elements and an electron image derived from a continuous photo-electric surface on which the image to be transmitted is projected or focussed on it. The correcting signals may be applied to an electrode of an electron multiplier made to amplify the signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1750938A GB515801A (en) | 1938-06-13 | 1938-06-13 | Improvements in or relating to television and like systems employing electronic scanning devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1750938A GB515801A (en) | 1938-06-13 | 1938-06-13 | Improvements in or relating to television and like systems employing electronic scanning devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB515801A true GB515801A (en) | 1939-12-14 |
Family
ID=10096435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1750938A Expired GB515801A (en) | 1938-06-13 | 1938-06-13 | Improvements in or relating to television and like systems employing electronic scanning devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB515801A (en) |
-
1938
- 1938-06-13 GB GB1750938A patent/GB515801A/en not_active Expired
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