JPS5732553A - Manufacture of cathode ray tube - Google Patents

Manufacture of cathode ray tube

Info

Publication number
JPS5732553A
JPS5732553A JP10856180A JP10856180A JPS5732553A JP S5732553 A JPS5732553 A JP S5732553A JP 10856180 A JP10856180 A JP 10856180A JP 10856180 A JP10856180 A JP 10856180A JP S5732553 A JPS5732553 A JP S5732553A
Authority
JP
Japan
Prior art keywords
cathode ray
ray tube
unnecessary electron
generating source
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
JP10856180A
Other languages
Japanese (ja)
Inventor
Mitsuyuki Shiotani
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP10856180A priority Critical patent/JPS5732553A/en
Publication of JPS5732553A publication Critical patent/JPS5732553A/en
Pending 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
    • H01J29/94—Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

PURPOSE:To improve the breakdown strength and to improve the picture quality, by performing the getter flush in the cathode ray tube then applying the high frequency discharge on the grid to eliminate the unnecessary electron generating source. CONSTITUTION:A heater 3, cathode body 4, first to third grids 5-7 and an anode body 8 are arranged in the neck section 1A of a cathode ray tube 1, and after evacuating the tube an activation process and getter flush process are performed. Then in order to prevent the production of unnecessary electron from unnecessary electron generating source provided due to the activation and the getter flush, high frequency discharge through Tesla coil device 18 is applied from the outside on the part in the neck section 1A facing with the third grid 7. Consequently the unnecessary electron generating source can be dispersed by producing the pole-less discharge ?in the tube thereby the breakdown strength can be improved easily.
JP10856180A 1980-08-04 1980-08-04 Manufacture of cathode ray tube Pending JPS5732553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10856180A JPS5732553A (en) 1980-08-04 1980-08-04 Manufacture of cathode ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10856180A JPS5732553A (en) 1980-08-04 1980-08-04 Manufacture of cathode ray tube

Publications (1)

Publication Number Publication Date
JPS5732553A true JPS5732553A (en) 1982-02-22

Family

ID=14487941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10856180A Pending JPS5732553A (en) 1980-08-04 1980-08-04 Manufacture of cathode ray tube

Country Status (1)

Country Link
JP (1) JPS5732553A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150002A (en) * 1983-09-12 1992-09-22 U.S. Philips Corporation Electron tube with electrode centering arrangement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5549838A (en) * 1978-10-05 1980-04-10 Toshiba Corp Treating method for electron gun

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5549838A (en) * 1978-10-05 1980-04-10 Toshiba Corp Treating method for electron gun

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150002A (en) * 1983-09-12 1992-09-22 U.S. Philips Corporation Electron tube with electrode centering arrangement

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