GB454422A - Improvements in or relating to photo-electrically sensitive means for use in cathode ray tubes and like devices - Google Patents
Improvements in or relating to photo-electrically sensitive means for use in cathode ray tubes and like devicesInfo
- Publication number
- GB454422A GB454422A GB6396/35A GB639635A GB454422A GB 454422 A GB454422 A GB 454422A GB 6396/35 A GB6396/35 A GB 6396/35A GB 639635 A GB639635 A GB 639635A GB 454422 A GB454422 A GB 454422A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screen
- photo
- ray
- metal
- apertures
- 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
- 229910052751 metal Inorganic materials 0.000 abstract 5
- 239000002184 metal Substances 0.000 abstract 5
- 239000000463 material Substances 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 210000003298 dental enamel Anatomy 0.000 abstract 1
- 238000000151 deposition Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
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
- H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
- H01J29/36—Photoelectric screens; Charge-storage screens
- H01J29/39—Charge-storage screens
- H01J29/43—Charge-storage screens using photo-emissive mosaic, e.g. for orthicon, for iconoscope
- H01J29/435—Charge-storage screens using photo-emissive mosaic, e.g. for orthicon, for iconoscope with a matrix of conductors traversing the target
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/10—Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
- Y10T442/102—Woven scrim
- Y10T442/109—Metal or metal-coated fiber-containing scrim
Landscapes
- Electrolytic Production Of Metals (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
454,422. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London. -(Assignees of Flory, L. E. ; 122, East Beechwood Avenue, Oaklyn, New Jersey, U.S.A.) Feb. 28, 1935, No. 6396. Convention date, Feb. 28, 1934. [Class 39 (i)] A photo-electrically sensitized mosaic screen 26 for use in a cathode-ray-tube, television transmitter is formed with a finely apertured wire base such as gauze 12, which is rolled flat and then insulated by an enamel 16 which enters the apertures ; the apertures are then filled with metal 24 either by pressing the material in paste or powder form, or by depositing the metal electrolytically. This may be effected on to a backing plate subsequently removed by grinding. The mesh may have 22,500 or 40,000 openings per square inch. One side of all the metal insets is then coated with photo-sensitive material 36. In a modification the screen may be formed from a thin metal sheet by a photo-engraving process ; a pattern of the apertures is photographed on a thin plate and an acid is applied to eat away the material unprotected by the photographic layer; the sheet is then cleaned, enamelled and filled with metal which is sensitized on one side. The screen substantially extends entirely across the cathode ray tube 28, the picture to be transmitted being focused from one side ; a wide-mesh, positively-charged electrode 42 collects the electrons emitted from the photo-sensitive surface. The screen is scanned on the other side by a ray 34 to develop the picture signals, the output current being taken off the screen to an amplifier 46. Electrons due to secondary emission from the screen due to the ray 34 are collected by an anode 52, which may be in the form of a silver coating on the tube and helps to focus the ray at a high speed on the screen.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US713283A US2045984A (en) | 1934-02-28 | 1934-02-28 | Photoelectric device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB454422A true GB454422A (en) | 1936-09-28 |
Family
ID=24865531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6396/35A Expired GB454422A (en) | 1934-02-28 | 1935-02-28 | Improvements in or relating to photo-electrically sensitive means for use in cathode ray tubes and like devices |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2045984A (en) |
| BE (1) | BE408120A (en) |
| DE (1) | DE716370C (en) |
| FR (1) | FR787661A (en) |
| GB (1) | GB454422A (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE892144C (en) * | 1935-11-14 | 1953-10-05 | Fernseh Gmbh | Electron beam tube with photocell mosaic |
| US2441810A (en) * | 1943-01-01 | 1948-05-18 | Rca Corp | Phototube and method of manufacture |
| US2416720A (en) * | 1943-01-30 | 1947-03-04 | Bell Telephone Labor Inc | Electrooptical device |
| US2423124A (en) * | 1943-01-30 | 1947-07-01 | Bell Telephone Labor Inc | Electro-optical device |
| US2512575A (en) * | 1945-02-03 | 1950-06-20 | American Cyanamid Co | Specimen molding |
| NL77934C (en) * | 1945-10-06 | |||
| US2539442A (en) * | 1946-07-01 | 1951-01-30 | Farnsworth Res Corp | Process of preparing a double-sided mosaic electrode |
| US2617073A (en) * | 1947-01-10 | 1952-11-04 | Andrew V Haeff | Signal integrating tube for radar |
| US2487865A (en) * | 1947-02-27 | 1949-11-15 | Eastman Kodak Co | Photoelectric line scanning |
| US2495042A (en) * | 1947-11-12 | 1950-01-17 | Remington Rand Inc | Two-sided mosaic and method of manufacturing same |
| US2682501A (en) * | 1948-12-29 | 1954-06-29 | Bell Telephone Labor Inc | Preparation of two-sided mosaic |
| US2883275A (en) * | 1955-04-08 | 1959-04-21 | Turco Products Inc | Process of removing material from a work piece |
| US2912743A (en) * | 1955-08-01 | 1959-11-17 | Westinghouse Electric Corp | Grid electrodes for electron discharge devices |
| US2777040A (en) * | 1955-08-17 | 1957-01-08 | Rca Corp | Large area photocell |
-
0
- BE BE408120D patent/BE408120A/xx unknown
-
1934
- 1934-02-28 US US713283A patent/US2045984A/en not_active Expired - Lifetime
-
1935
- 1935-02-27 DE DER92727D patent/DE716370C/en not_active Expired
- 1935-02-27 FR FR787661D patent/FR787661A/en not_active Expired
- 1935-02-28 GB GB6396/35A patent/GB454422A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2045984A (en) | 1936-06-30 |
| DE716370C (en) | 1942-01-20 |
| BE408120A (en) | 1900-01-01 |
| FR787661A (en) | 1935-09-26 |
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