GB486214A - Improvements in or relating to electron cameras with photo-electric storage plates - Google Patents
Improvements in or relating to electron cameras with photo-electric storage platesInfo
- Publication number
- GB486214A GB486214A GB622/37A GB62237A GB486214A GB 486214 A GB486214 A GB 486214A GB 622/37 A GB622/37 A GB 622/37A GB 62237 A GB62237 A GB 62237A GB 486214 A GB486214 A GB 486214A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- conductor
- cathode
- ray
- jan
- 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
-
- 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)
- Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
Abstract
486,214. Cathode-ray tubes. RADIOAKT.-GES. D. S. LOEWE. Jan. 8, 1937, Nos. 622 and 623. Convention dates, Jan. 11, 1936 and Jan. 16, 1936. [Class 39 (i)] In picture-transmitting tubes with a picturereceiving, photo-electric, storage plate 9 and electrostatic means 13 ... 16 for causing the cathode-ray to scan this plate, a conductor 20 extended in the mean direction of the ray is mounted inside the tube, clear of its walls, between the plate 9 and the means 13 ... 16 to avoid electrostatic effects of the deflecting voltages on the plate 9. The conductor 20 may be frusto-conical and earthed as regards alternating current or directly, the main anode 8 being also earthed. Alternatively, the conductor 20 may be biassed positively relatively to the equilibrium potential of the photoelectric mosaic. The conductor 20 surrounds at least half of the length of the deflected cathode-ray and is itself surrounded by an earthed coating 19 on the wall of the tube. The electrons from the cathode 1 are concentrated on to the aperture of a diaphragm 4 by a cylinder 3 with conical member 2. The diaphragm 4 terminates in a tube 5 with apertured disc 6 to form with the anode 8 an electrostatic lens reproducing the aperture in the diaphragm 4 on the plate 9. The distance from the conductor 20 to the deflecting plates 15, 16 is at least as great as the maximum distance between the plates, and the distance of the conductor from the plate 9 is approximately equal to the height of the plate. Dimensions and voltages are specified. The picture is thrown on the plate 9 by a mirror as described in Specification 458,187. In a modification, the conductor 20 is cylindrical, contains the mirror and has at its end facing the deflecting plates, a grid as described in Specification 624/37.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE486214X | 1936-01-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB486214A true GB486214A (en) | 1938-06-01 |
Family
ID=6543406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB622/37A Expired GB486214A (en) | 1936-01-11 | 1937-01-08 | Improvements in or relating to electron cameras with photo-electric storage plates |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2185132A (en) |
| FR (1) | FR816190A (en) |
| GB (1) | GB486214A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2781474A (en) * | 1951-07-16 | 1957-02-12 | Radiation Res Corp | Beam deflection electrometer amplifier tubes |
-
1937
- 1937-01-06 US US119192A patent/US2185132A/en not_active Expired - Lifetime
- 1937-01-08 GB GB622/37A patent/GB486214A/en not_active Expired
- 1937-01-09 FR FR816190D patent/FR816190A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR816190A (en) | 1937-08-02 |
| US2185132A (en) | 1939-12-26 |
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