NL212695A - - Google Patents
Info
- Publication number
- NL212695A NL212695A NL212695DA NL212695A NL 212695 A NL212695 A NL 212695A NL 212695D A NL212695D A NL 212695DA NL 212695 A NL212695 A NL 212695A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/12—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/34—Photo-emissive cathodes
-
- 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
- H01J29/38—Photoelectric screens; Charge-storage screens not using charge storage, e.g. photo-emissive screen, extended cathode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/34—Photoemissive electrodes
- H01J2201/342—Cathodes
- H01J2201/3421—Composition of the emitting surface
- H01J2201/3426—Alkaline metal compounds, e.g. Na-K-Sb
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
- Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US551028A US2914690A (en) | 1955-12-05 | 1955-12-05 | Electron-emitting surfaces and methods of making them |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL212695A true NL212695A (US06521211-20030218-C00004.png) |
Family
ID=24199537
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL212695D NL212695A (US06521211-20030218-C00004.png) | 1955-12-05 | ||
| NL96983D NL96983C (US06521211-20030218-C00004.png) | 1955-12-05 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL96983D NL96983C (US06521211-20030218-C00004.png) | 1955-12-05 |
Country Status (6)
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3020432A (en) * | 1959-11-24 | 1962-02-06 | Westinghouse Electric Corp | Photoconductive device |
| US3179835A (en) * | 1960-11-22 | 1965-04-20 | Rca Corp | Pickup tube having a cesiated photocathode and a substantially leakagefree target, and method of making the same |
| US3303373A (en) * | 1964-01-27 | 1967-02-07 | Westinghouse Electric Corp | Target assembly comprising insulating target, field and collector meshes |
| US3434876A (en) * | 1965-11-23 | 1969-03-25 | Rca Corp | Photosensitive cathodes |
| US3372967A (en) * | 1966-07-06 | 1968-03-12 | Rca Corp | Method of making a multi-alkali cathode |
| US3498834A (en) * | 1967-02-03 | 1970-03-03 | Weston Instruments Inc | Photoelectric surfaces and methods for their production |
| US3535011A (en) * | 1968-02-27 | 1970-10-20 | Rca Corp | Method of making photoemissive electron tubes |
| US3658400A (en) * | 1970-03-02 | 1972-04-25 | Rca Corp | Method of making a multialkali photocathode with improved sensitivity to infrared light and a photocathode made thereby |
| US3753023A (en) * | 1971-12-03 | 1973-08-14 | Rca Corp | Electron emissive device incorporating a secondary electron emitting material of antimony activated with potassium and cesium |
| US4002735A (en) * | 1975-06-04 | 1977-01-11 | Rca Corporation | Method of sensitizing electron emissive surfaces of antimony base layers with alkali metal vapors |
| US4568567A (en) * | 1984-10-09 | 1986-02-04 | Rca Corporation | Method of removing trace quantities of alkali metal impurities from a bialkali-antimonide photoemissive cathode |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB522774A (en) * | 1939-03-15 | 1940-06-26 | Baird Television Ltd | Improvements in or relating to methods of manufacturing secondary emitting electrodes |
| US2391280A (en) * | 1942-11-26 | 1945-12-18 | Bell Telephone Labor Inc | Method of forming layers for electronic cathodes |
| USRE23802E (en) * | 1948-11-05 | 1954-03-16 | Photocathode | |
| GB668643A (en) * | 1949-06-03 | 1952-03-19 | Emi Ltd | Improvements in or relating to circuits embodying cathode potential stabilised picture signal generating tubes |
| US2747133A (en) * | 1950-07-05 | 1956-05-22 | Rca Corp | Television pickup tube |
| BE536298A (US06521211-20030218-C00004.png) * | 1954-03-08 | 1900-01-01 |
-
0
- NL NL212695D patent/NL212695A/xx unknown
- NL NL96983D patent/NL96983C/xx active
- BE BE553132D patent/BE553132A/xx unknown
-
1955
- 1955-12-05 US US551028A patent/US2914690A/en not_active Expired - Lifetime
-
1956
- 1956-11-12 GB GB34562/56A patent/GB842894A/en not_active Expired
- 1956-12-03 FR FR1168953D patent/FR1168953A/fr not_active Expired
- 1956-12-05 DE DEP1269A patent/DE1269253B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US2914690A (en) | 1959-11-24 |
| GB842894A (en) | 1960-07-27 |
| BE553132A (US06521211-20030218-C00004.png) | |
| DE1269253B (de) | 1968-05-30 |
| FR1168953A (fr) | 1958-12-19 |
| NL96983C (US06521211-20030218-C00004.png) |
