GB498867A - Improvements in or relating to the generation of signals in television or like systems - Google Patents
Improvements in or relating to the generation of signals in television or like systemsInfo
- Publication number
- GB498867A GB498867A GB29590/37A GB2959037A GB498867A GB 498867 A GB498867 A GB 498867A GB 29590/37 A GB29590/37 A GB 29590/37A GB 2959037 A GB2959037 A GB 2959037A GB 498867 A GB498867 A GB 498867A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- coating
- television
- point
- current flows
- 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
- 239000011248 coating agent Substances 0.000 abstract 3
- 238000000576 coating method Methods 0.000 abstract 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000010894 electron beam technology Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000010445 mica Substances 0.000 abstract 1
- 229910052618 mica group Inorganic materials 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/26—Image pick-up tubes having an input of visible light and electric output
- H01J31/28—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen
- H01J31/30—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen having regulation of screen potential at anode potential, e.g. iconoscope
- H01J31/32—Tubes with image amplification section, e.g. image-iconoscope, supericonoscope
Abstract
498,867. Cathode-ray tubes. FARNSWORTH TELEVISION, Inc. Oct. 29, 1937, No. 29590. Convention date, Nov. 2, 1936. [Class 39 (i)] In a television system signals are generated by focusing the light image on a photo-electric, apertured screen 4 and the electrons emitted are accelerated towards a mica or glass storage electrode 6 by a screen electrode 6. The electrode 6 is provided with a rear coating 7 of metal, and due to the formation of the charge image on the front surface of the electrode, a current flows from the coating through a resistance 24. An electron beam from a gun 15 scans the storage electrode 6, which emits secondary electrons ; these pass to the electrode 5, the point scanned being thereby raised to a positive potential which is the same over the whole surface, so that a displacement current flows in the resistance 24 which, as any particular point is scanned, is proportional to the intensity of the charge image at that point. The light image passes through the electrode 6 and coating 7.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US108724A US2124057A (en) | 1936-11-02 | 1936-11-02 | Beam scanning dissector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB498867A true GB498867A (en) | 1939-01-16 |
Family
ID=22323716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29590/37A Expired GB498867A (en) | 1936-11-02 | 1937-10-29 | Improvements in or relating to the generation of signals in television or like systems |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2124057A (en) |
| GB (1) | GB498867A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2563488A (en) * | 1951-08-07 | Barrier grid storage tube | ||
| US2518434A (en) * | 1945-07-12 | 1950-08-08 | Emi Ltd | Electron discharge device such as a television transmitting tube |
| USRE24070E (en) * | 1948-01-29 | 1955-10-04 | pierce | |
| BE486036A (en) * | 1948-01-29 | |||
| US4827125A (en) * | 1987-04-29 | 1989-05-02 | The United States Of America As Represented By The Secretary Of The Department Of Health And Human Services | Confocal scanning laser microscope having no moving parts |
-
1936
- 1936-11-02 US US108724A patent/US2124057A/en not_active Expired - Lifetime
-
1937
- 1937-10-29 GB GB29590/37A patent/GB498867A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2124057A (en) | 1938-07-19 |
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