JPS57835A - Picture image indicator - Google Patents

Picture image indicator

Info

Publication number
JPS57835A
JPS57835A JP7511980A JP7511980A JPS57835A JP S57835 A JPS57835 A JP S57835A JP 7511980 A JP7511980 A JP 7511980A JP 7511980 A JP7511980 A JP 7511980A JP S57835 A JPS57835 A JP S57835A
Authority
JP
Japan
Prior art keywords
spacer
electrode
holes
highly accurate
thermal distortion
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.)
Granted
Application number
JP7511980A
Other languages
Japanese (ja)
Other versions
JPH0152858B2 (en
Inventor
Kinzo Nonomura
Masanori Watanabe
Yoshinobu Takesako
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP7511980A priority Critical patent/JPS57835A/en
Publication of JPS57835A publication Critical patent/JPS57835A/en
Publication of JPH0152858B2 publication Critical patent/JPH0152858B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/123—Flat display tubes
    • H01J31/125—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection
    • H01J31/126—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection using line sources

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

PURPOSE:To enable the formation of highly accurate holes while to prevent the thermal distortion, by making the thin board surface of same material with each electrode means to be insulative through chemical method while inserting a spacer formed with an insulative film. CONSTITUTION:First spacer 44 is located while tightly contacting between first grid 43 and first electron beam control electrode 45, while some points on the circumference are secured partially by a flit glass. The first spacer 44 is made of 42-6 alloy similarly with the first electrode 43, where holes of 250-350phi are made through etching then it is heated to high temperature of 800-900 deg.C and formed with an oxidation film. The second spacer 46 is located between the first and second control electrodes 45, 47 and secured similarly with the first spacer 44 while contacting tightly. Consequently highly accurate holes can be formed thereby an electrode structure which causes no thermal distortion can be produced.
JP7511980A 1980-06-03 1980-06-03 Picture image indicator Granted JPS57835A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7511980A JPS57835A (en) 1980-06-03 1980-06-03 Picture image indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7511980A JPS57835A (en) 1980-06-03 1980-06-03 Picture image indicator

Publications (2)

Publication Number Publication Date
JPS57835A true JPS57835A (en) 1982-01-05
JPH0152858B2 JPH0152858B2 (en) 1989-11-10

Family

ID=13566981

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7511980A Granted JPS57835A (en) 1980-06-03 1980-06-03 Picture image indicator

Country Status (1)

Country Link
JP (1) JPS57835A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041742A (en) * 1983-08-18 1985-03-05 Matsushita Electric Ind Co Ltd Picture display device
CN1046600C (en) * 1994-06-29 1999-11-17 冈谷电机产业株式会社 Electric discharge type for surge absorption element and manufacturing method for the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4733454U (en) * 1971-05-11 1972-12-14
JPS4822704U (en) * 1971-07-23 1973-03-15

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4733454U (en) * 1971-05-11 1972-12-14
JPS4822704U (en) * 1971-07-23 1973-03-15

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6041742A (en) * 1983-08-18 1985-03-05 Matsushita Electric Ind Co Ltd Picture display device
CN1046600C (en) * 1994-06-29 1999-11-17 冈谷电机产业株式会社 Electric discharge type for surge absorption element and manufacturing method for the same

Also Published As

Publication number Publication date
JPH0152858B2 (en) 1989-11-10

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