GB484913A - Improvements in or relating to cathode-ray tubes comprising photo-electric mosaic screens - Google Patents
Improvements in or relating to cathode-ray tubes comprising photo-electric mosaic screensInfo
- Publication number
- GB484913A GB484913A GB30637/36A GB3063736A GB484913A GB 484913 A GB484913 A GB 484913A GB 30637/36 A GB30637/36 A GB 30637/36A GB 3063736 A GB3063736 A GB 3063736A GB 484913 A GB484913 A GB 484913A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- mosaic
- cathode
- deposition
- 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
- 230000008021 deposition Effects 0.000 abstract 3
- 238000010894 electron beam technology Methods 0.000 abstract 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 230000005484 gravity Effects 0.000 abstract 1
- 229910052750 molybdenum Inorganic materials 0.000 abstract 1
- 239000011733 molybdenum Substances 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 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
Landscapes
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
- Gas-Filled Discharge Tubes (AREA)
Abstract
484,913. Cathode-ray tubes. FERNSEH AKT.-GES. Nov. 10, 1936, No. 30637. Convention date, Nov. 14, 1935. [Class 39 (i)] An electron-discharge device comprises a photo-electric mosaic surface 6 scanned by an electron beam and a grid electrode 7 disposed closely adjacent the mosaic and maintained at a higher positive potential with respect to the cathode than the equilibrium potential of the mosaic, the grid being placed in position adjacent the mosaic supporting member 4 before the deposition of the mosaic surface is effected. The grid may be connected to the anode 8 and serves to eliminate deceleration and other disturbance of the electron beam by the mosaic potentials ; the deposition of the mosaic through the grid removes loss of light by the shadow cast by the grid. Preferably the grid is held in contact with the supporting plate 4 during deposition of the mosaic, after which the clamps are released by magnets, gravity or inertia and springs move the grid normal to the plate to the required distance. In this way the grid does not lose its alignment with the mosaic elements. The grid may be of silver, platinum, molybdenum or tungsten wire of 0À1 to 0À02 mms. diameter, woven at 10-100 meshes per mm.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF4471D DE892144C (en) | 1935-11-14 | 1935-11-14 | Electron beam tube with photocell mosaic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB484913A true GB484913A (en) | 1938-05-10 |
Family
ID=6543208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30637/36A Expired GB484913A (en) | 1935-11-14 | 1936-11-10 | Improvements in or relating to cathode-ray tubes comprising photo-electric mosaic screens |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2160510A (en) |
| DE (1) | DE892144C (en) |
| FR (1) | FR813528A (en) |
| GB (1) | GB484913A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB499828A (en) * | 1937-07-28 | 1939-01-30 | Baird Television Ltd | Improvements in or relating to electron discharge devices for use in television and like systems |
| GB800251A (en) * | 1954-09-28 | 1958-08-20 | Emi Ltd | Improvements in or relating to the formation of mosaic screens as are utilised in television pick-up tubes |
| US2929934A (en) * | 1954-12-30 | 1960-03-22 | Rca Corp | Radiant energy sensitive device |
| BE544021A (en) * | 1954-12-30 | |||
| US3005046A (en) * | 1958-05-19 | 1961-10-17 | Diamond Power Speciality | Television camera |
| US3193907A (en) * | 1960-03-22 | 1965-07-13 | Litton Prec Products Inc | High speed cathode-ray direct writing tube |
| US3252030A (en) * | 1960-06-21 | 1966-05-17 | Diamond Power Speciality | Photoelectric camera tube with transistor-type photoanode |
| US3195219A (en) * | 1961-02-16 | 1965-07-20 | American Optical Corp | Energy conducting device |
| DE1268659B (en) * | 1966-03-16 | 1968-05-22 | Fernseh Gmbh | Process for the manufacture of storage electrodes for television pick-up tubes |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB406353A (en) * | 1932-08-25 | 1934-02-26 | Emi Ltd | Improvements in or relating to cathode ray tubes and the like |
| GB416848A (en) * | 1933-02-23 | 1934-09-24 | Marconi Wireless Telegraph Co | Improvements in or relating to television picture telegraph and the like transmitters |
| NL41920C (en) * | 1933-12-06 | |||
| BE408120A (en) * | 1934-02-28 | 1900-01-01 |
-
1935
- 1935-11-14 DE DEF4471D patent/DE892144C/en not_active Expired
-
1936
- 1936-11-06 US US109577A patent/US2160510A/en not_active Expired - Lifetime
- 1936-11-10 GB GB30637/36A patent/GB484913A/en not_active Expired
- 1936-11-14 FR FR813528D patent/FR813528A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE892144C (en) | 1953-10-05 |
| FR813528A (en) | 1937-06-03 |
| US2160510A (en) | 1939-05-30 |
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