JPS5798951A - Cathode-mounting apparatus of electron gun cathode structure - Google Patents

Cathode-mounting apparatus of electron gun cathode structure

Info

Publication number
JPS5798951A
JPS5798951A JP17422380A JP17422380A JPS5798951A JP S5798951 A JPS5798951 A JP S5798951A JP 17422380 A JP17422380 A JP 17422380A JP 17422380 A JP17422380 A JP 17422380A JP S5798951 A JPS5798951 A JP S5798951A
Authority
JP
Japan
Prior art keywords
cathode
mounting apparatus
electrode
distance
projections
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
JP17422380A
Other languages
Japanese (ja)
Inventor
Kazuaki Naiki
Hiromi Ogata
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP17422380A priority Critical patent/JPS5798951A/en
Publication of JPS5798951A publication Critical patent/JPS5798951A/en
Pending legal-status Critical Current

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
    • H01J9/18—Assembling together the component parts of electrode systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

PURPOSE:To set up easily and correctly the distance between a cathode and the surface of G1 electrode, by using a mounting apparatus with plural precisely designed projections which is predetermined distance away from a plane, this plane being in contact with the overall upper surface of a cathode-supporting body. CONSTITUTION:A cathode structure of a color cathode-ray tube is designed in such manner, so that a cathode-supporting body 12 provided wit three cathodes 14 is fitted into G1 electrode 11 of a blocked cylindrical body, and the distance between an electron emission surface on a cathode 14 and a G1 electrode surface is set up to be a predetrmined value d. In this case, a standard surface 3A in contact with the upper surface 12A on the cathode-supporting body 12, and the cathode-mounting apparatus 3 equipped with three precisely fabricated projections 3B which is placed a distance d away from the standard surface are prepared; here said distance d being one between the electron emission surface of the cathode 14 and G1 electrode; next, the cathode- mounting apparatus, a welding electrode 17 is fitted into the cathode 14, which is inserted into the cathode-supporting cylinder 13 in order to be in contact with the projections 3B and welded to fix it. Consequently, the predetermined distance d can be easily set up and the stability of this cathode-mounting apparatus can be enhanced.
JP17422380A 1980-12-10 1980-12-10 Cathode-mounting apparatus of electron gun cathode structure Pending JPS5798951A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17422380A JPS5798951A (en) 1980-12-10 1980-12-10 Cathode-mounting apparatus of electron gun cathode structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17422380A JPS5798951A (en) 1980-12-10 1980-12-10 Cathode-mounting apparatus of electron gun cathode structure

Publications (1)

Publication Number Publication Date
JPS5798951A true JPS5798951A (en) 1982-06-19

Family

ID=15974871

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17422380A Pending JPS5798951A (en) 1980-12-10 1980-12-10 Cathode-mounting apparatus of electron gun cathode structure

Country Status (1)

Country Link
JP (1) JPS5798951A (en)

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