JPS5330862A - Production of cathode of directly-heated cathode-ray tube - Google Patents

Production of cathode of directly-heated cathode-ray tube

Info

Publication number
JPS5330862A
JPS5330862A JP10486976A JP10486976A JPS5330862A JP S5330862 A JPS5330862 A JP S5330862A JP 10486976 A JP10486976 A JP 10486976A JP 10486976 A JP10486976 A JP 10486976A JP S5330862 A JPS5330862 A JP S5330862A
Authority
JP
Japan
Prior art keywords
cathode
directly
heated
production
ray tube
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
JP10486976A
Other languages
Japanese (ja)
Inventor
Hisashi Ando
Hiroshi Soeno
Hiroshi Sakamoto
Tetsuo Koyama
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP10486976A priority Critical patent/JPS5330862A/en
Publication of JPS5330862A publication Critical patent/JPS5330862A/en
Pending legal-status Critical Current

Links

Landscapes

  • Solid Thermionic Cathode (AREA)

Abstract

PURPOSE: A Ni plating layer is provided on both sides of a Ni-W-Zr alloy plate, the Ni-Co powder is put on one side or both sides and heated and diffused into a metallic substrate, and next, a thermion radiating layer is provided, thereby protecting a directly-heated cathode from thermal deformation.
COPYRIGHT: (C)1978,JPO&Japio
JP10486976A 1976-09-03 1976-09-03 Production of cathode of directly-heated cathode-ray tube Pending JPS5330862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10486976A JPS5330862A (en) 1976-09-03 1976-09-03 Production of cathode of directly-heated cathode-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10486976A JPS5330862A (en) 1976-09-03 1976-09-03 Production of cathode of directly-heated cathode-ray tube

Publications (1)

Publication Number Publication Date
JPS5330862A true JPS5330862A (en) 1978-03-23

Family

ID=14392220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10486976A Pending JPS5330862A (en) 1976-09-03 1976-09-03 Production of cathode of directly-heated cathode-ray tube

Country Status (1)

Country Link
JP (1) JPS5330862A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56106339A (en) * 1980-01-25 1981-08-24 Hitachi Ltd Manufacture of direct heated oxide cathode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56106339A (en) * 1980-01-25 1981-08-24 Hitachi Ltd Manufacture of direct heated oxide cathode

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