JPS5516379A - Preparing directly-heated cathode structure - Google Patents

Preparing directly-heated cathode structure

Info

Publication number
JPS5516379A
JPS5516379A JP8940978A JP8940978A JPS5516379A JP S5516379 A JPS5516379 A JP S5516379A JP 8940978 A JP8940978 A JP 8940978A JP 8940978 A JP8940978 A JP 8940978A JP S5516379 A JPS5516379 A JP S5516379A
Authority
JP
Japan
Prior art keywords
spring
support unit
conductive support
cathode
tension
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.)
Pending
Application number
JP8940978A
Other languages
Japanese (ja)
Inventor
Hidetoshi Nagasawa
Shigekazu Shibata
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8940978A priority Critical patent/JPS5516379A/en
Publication of JPS5516379A publication Critical patent/JPS5516379A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To stably support the cathode with deflection amount and tension of the spring made proportional, by means of pressure welding the spring, for fixing the end part of filament, with the contact made at two points in lengthwise ddirection of the conductive support unit.
CONSTITUTION: The end part of a band-shape filament 4, on which a cathode 1 is secured to a spring material 7, fixed to a conductive support unit 6, at a welding point 8, 9, with said filament bridged to be extended by a tension of the spring 7 over between support posts 10, 11 of an insulation support unit 5. At this time, a spring material 32 is curved so as to be contacted to the conductive support unit 6 at two points 33, 34 in the lengthwise direction, and a fixing is processed at a welding point 40 by welding electrodes 38, 39 in a manner with the conductive support unit 6 and the spring materal 32 press attached through an air gap portion 35. In this way, deflection amount and tension of the spring material come to be in a proportional relation, capable of obtaining a constant distance between a grid 12 and the cathode 1, a worsening of picture reproduction can be prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP8940978A 1978-07-24 1978-07-24 Preparing directly-heated cathode structure Pending JPS5516379A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8940978A JPS5516379A (en) 1978-07-24 1978-07-24 Preparing directly-heated cathode structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8940978A JPS5516379A (en) 1978-07-24 1978-07-24 Preparing directly-heated cathode structure

Publications (1)

Publication Number Publication Date
JPS5516379A true JPS5516379A (en) 1980-02-05

Family

ID=13969837

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8940978A Pending JPS5516379A (en) 1978-07-24 1978-07-24 Preparing directly-heated cathode structure

Country Status (1)

Country Link
JP (1) JPS5516379A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5369068A (en) * 1992-07-31 1994-11-29 Toyota Jidosha Kabushiki Kaisha Bismuth lamellar compound

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5369068A (en) * 1992-07-31 1994-11-29 Toyota Jidosha Kabushiki Kaisha Bismuth lamellar compound

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