DE2964951D1 - Thermal radiation heating cathode structure - Google Patents

Thermal radiation heating cathode structure

Info

Publication number
DE2964951D1
DE2964951D1 DE7979200341T DE2964951T DE2964951D1 DE 2964951 D1 DE2964951 D1 DE 2964951D1 DE 7979200341 T DE7979200341 T DE 7979200341T DE 2964951 T DE2964951 T DE 2964951T DE 2964951 D1 DE2964951 D1 DE 2964951D1
Authority
DE
Germany
Prior art keywords
cathode
disc
cathode structure
thermal radiation
radiation heating
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
Application number
DE7979200341T
Other languages
German (de)
Inventor
Andre Wolfram
Peter Schmidt
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.)
Alcatel Lucent Deutschland AG
International Standard Electric Corp
Original Assignee
Standard Elektrik Lorenz AG
International Standard Electric Corp
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.)
Filing date
Publication date
Application filed by Standard Elektrik Lorenz AG, International Standard Electric Corp filed Critical Standard Elektrik Lorenz AG
Priority to DE7979200341T priority Critical patent/DE2964951D1/en
Application granted granted Critical
Publication of DE2964951D1 publication Critical patent/DE2964951D1/en
Expired legal-status Critical Current

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
    • H01J29/04—Cathodes

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)
  • Furnace Details (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Gas-Filled Discharge Tubes (AREA)

Abstract

1. Cathode structure for radiation-heated cathodes of an cathode ray tube, especially a picture tube, in which the cathode consists primarily of a disc carrying the emitting layer which is connected with a ring (4) via holding elements (3) which are arranged radially to the cathode disc, form angles with each other and project away from the cathode disc with their ends, characterized in this, that the holding elements are insulating rods which are arranged displaceably along their axes and, in at least one plane, parallel to the cathode disc.
DE7979200341T 1978-08-12 1979-06-26 Thermal radiation heating cathode structure Expired DE2964951D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE7979200341T DE2964951D1 (en) 1978-08-12 1979-06-26 Thermal radiation heating cathode structure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782835489 DE2835489A1 (en) 1978-08-12 1978-08-12 CATHODE STRUCTURE FOR RADIANT HEATED CATHODE
DE7979200341T DE2964951D1 (en) 1978-08-12 1979-06-26 Thermal radiation heating cathode structure

Publications (1)

Publication Number Publication Date
DE2964951D1 true DE2964951D1 (en) 1983-04-07

Family

ID=6046958

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19782835489 Withdrawn DE2835489A1 (en) 1978-08-12 1978-08-12 CATHODE STRUCTURE FOR RADIANT HEATED CATHODE
DE7979200341T Expired DE2964951D1 (en) 1978-08-12 1979-06-26 Thermal radiation heating cathode structure

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19782835489 Withdrawn DE2835489A1 (en) 1978-08-12 1978-08-12 CATHODE STRUCTURE FOR RADIANT HEATED CATHODE

Country Status (3)

Country Link
EP (1) EP0008137B1 (en)
AT (1) ATE2705T1 (en)
DE (2) DE2835489A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19800773C1 (en) * 1998-01-12 1999-07-29 Siemens Ag Indirectly heated cathode with long life especially for X=ray tubes for examination of materials

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1800953A1 (en) * 1968-08-15 1970-02-26 Siemens Ag Indirectly heated reserve cathode
NL7003279A (en) * 1970-03-07 1971-09-09
DE2442510A1 (en) * 1974-09-05 1976-03-18 Licentia Gmbh Indirectly heated cathode for electron tubes - has heating filament in shell-shaped housing of elliptical shell sections

Also Published As

Publication number Publication date
EP0008137B1 (en) 1983-03-02
DE2835489A1 (en) 1980-02-21
EP0008137A1 (en) 1980-02-20
ATE2705T1 (en) 1983-03-15

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee