FR935641A - Development of electronic discharge devices using secondary electronic emission and the electrodes applicable to them - Google Patents

Development of electronic discharge devices using secondary electronic emission and the electrodes applicable to them

Info

Publication number: FR935641A
Authority: FR; France
Prior art keywords: electronic; development; discharge devices; emission; electrodes applicable
Prior art date: 1945-11-07
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

Application number

Other languages

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

EMI Ltd

Electrical and Musical Industries Ltd

Original Assignee

EMI Ltd

Electrical and Musical Industries Ltd

Priority date (The priority date 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 date listed.)

1945-11-07

Filing date

1946-11-07

Publication date

1948-06-24

1946-11-07 Application filed by EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd

1948-06-24 Application granted granted Critical

1948-06-24 Publication of FR935641A publication Critical patent/FR935641A/en

Status Expired legal-status Critical Current

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
- H01J9/125—Manufacture of electrodes or electrode systems of photo-emissive cathodes; of secondary-emission electrodes 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
- H01J1/32—Secondary-electron-emitting electrodes
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2201/00—Electrodes common to discharge tubes
- H01J2201/32—Secondary emission electrodes
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9265—Special properties
- Y10S428/929—Electrical contact feature
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9335—Product by special process
- Y10S428/936—Chemical deposition, e.g. electroless plating
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9335—Product by special process
- Y10S428/938—Vapor deposition or gas diffusion
- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12535—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
- Y10T428/12611—Oxide-containing component
- Y10T428/12618—Plural oxides
- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12729—Group IIA metal-base component
- 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
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12493—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
- Y10T428/12986—Adjacent functionally defined components

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Discharge Lamp (AREA)
Solid Thermionic Cathode (AREA)

FR935641D 1945-11-07 1946-11-07 Development of electronic discharge devices using secondary electronic emission and the electrodes applicable to them Expired FR935641A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB271499X		1945-11-07
GB261046X		1946-10-26

Publications (1)

Publication Number	Publication Date
FR935641A true FR935641A (en)	1948-06-24

Family

ID=26258084

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR935641D Expired FR935641A (en)	1945-11-07	1946-11-07	Development of electronic discharge devices using secondary electronic emission and the electrodes applicable to them

Country Status (5)

Country	Link
US (1)	US2585534A (en)
CH (1)	CH271499A (en)
DE (1)	DE856489C (en)
FR (1)	FR935641A (en)
GB (4)	GB670554A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3159461A (en) *	1958-10-20	1964-12-01	Bell Telephone Labor Inc	Thermionic cathode
US3445361A (en) *	1966-05-04	1969-05-20	Horizons Research Inc	Whisker reinforced composite materials produced by electrophoretic deposition
FR2432717A1 (en) *	1978-04-27	1980-02-29	Commissariat Energie Atomique	PROCESS FOR MANUFACTURING SENSITIVE PLATES FOR ELECTRON DOSIMETERS
FR2644288A1 (en) *	1989-03-13	1990-09-14	Asulab Sa	METHOD FOR MANUFACTURING A DYNODE AND DYNODE MANUFACTURED ACCORDING TO THIS METHOD
JP2500209B2 (en) *	1991-09-11	1996-05-29	浜松ホトニクス株式会社	Reflective photocathode and photomultiplier tube

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1639698A (en) *	1926-01-14	1927-08-23	Hazeltine Corp	Electron-emitting cathode and process of preparing the same
GB478187A (en) *	1935-04-16	1938-01-10	Philips Nv	Improvements in or relating to the production of alkaline earth carbonate layers
FR824365A (en) *	1936-10-23	1938-02-07	Radio Electr Soc Fr	Electrodes for discharge lamps
US2189358A (en) *	1937-03-22	1940-02-06	Farnsworth Television & Radio	Diode oscillator tube construction
BE427143A (en) *	1937-03-25
BE429565A (en) *	1937-08-07
US2171227A (en) *	1937-08-09	1939-08-29	Philips Nv	Secondary electron emitter and method of making it
US2317754A (en) *	1940-07-31	1943-04-27	Gorlich Paul	Method of producing secondary electron emitting cathodes

1945
- 1945-11-07 GB GB29631/45A patent/GB670554A/en not_active Expired
- 1945-11-07 GB GB9302/48A patent/GB670583A/en not_active Expired
- 1945-11-07 GB GB9301/48A patent/GB670582A/en not_active Expired
- 1945-11-07 GB GB29508/48A patent/GB670593A/en not_active Expired
1946
- 1946-11-07 FR FR935641D patent/FR935641A/en not_active Expired
- 1946-11-07 CH CH271499D patent/CH271499A/en unknown
- 1946-11-23 US US711860A patent/US2585534A/en not_active Expired - Lifetime
1949
- 1949-03-01 DE DEP35321A patent/DE856489C/en not_active Expired

Also Published As

Publication number	Publication date
GB670554A (en)	1952-04-23
GB670583A (en)	1952-04-23
US2585534A (en)	1952-02-12
GB670593A (en)	1952-04-23
CH271499A (en)	1950-10-31
GB670582A (en)	1952-04-23
DE856489C (en)	1952-11-20

Publication	Publication Date	Title
FR938399A (en)	1948-09-13	Electronic discharge device
FR941734A (en)	1949-01-19	Electronic multiplier
FR936837A (en)	1948-07-30	Concentrated electronic current discharge tube
FR932091A (en)	1948-03-11	Electronic discharge device
FR937491A (en)	1948-08-18	Electronic discharge devices
FR935641A (en)	1948-06-24	Development of electronic discharge devices using secondary electronic emission and the electrodes applicable to them
FR933936A (en)	1948-05-05	Development of electronic discharge devices
FR946926A (en)	1949-06-17	Electronic discharge devices
FR938873A (en)	1948-10-27	Electrodes for electronic discharge devices
FR947275A (en)	1949-06-28	Electron tube devices
FR948600A (en)	1949-08-04	Electronic discharge devices
FR926120A (en)	1947-09-23	Electron tube
FR952893A (en)	1949-11-25	Electronic discharge tubes
FR939272A (en)	1948-11-09	Improvements to electronic discharge devices
FR943687A (en)	1949-03-15	Further development of electronic discharge tubes
FR943331A (en)	1949-03-04	Electronic discharge device
FR924513A (en)	1947-08-07	Electronic photocathode multiplier
FR911627A (en)	1946-07-16	Further development of the cathodes of electronic discharge tubes
FR932279A (en)	1948-03-17	Improvements to electronic discharge devices
FR931020A (en)	1948-02-11	Improvements to electronic discharge devices
FR937549A (en)	1948-08-19	Improvements to electronic discharge devices
FR927577A (en)	1947-11-03	Improvements to electronic discharge devices
FR939373A (en)	1948-11-12	Improvements to electronic discharge devices
FR938736A (en)	1948-10-22	Electronic discharge devices
FR934993A (en)	1948-06-07	Electronic discharge devices