JPS5713653A - Flat type cathode-ray tube - Google Patents

Flat type cathode-ray tube

Info

Publication number
JPS5713653A
JPS5713653A JP8709780A JP8709780A JPS5713653A JP S5713653 A JPS5713653 A JP S5713653A JP 8709780 A JP8709780 A JP 8709780A JP 8709780 A JP8709780 A JP 8709780A JP S5713653 A JPS5713653 A JP S5713653A
Authority
JP
Japan
Prior art keywords
gap
distortion
electron gun
face plate
penetrating hole
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
JP8709780A
Other languages
Japanese (ja)
Other versions
JPH043057B2 (en
Inventor
Koki Sato
Masato Hatanaka
Toshio Oboshi
Sakae Tanaka
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP8709780A priority Critical patent/JPS5713653A/en
Publication of JPS5713653A publication Critical patent/JPS5713653A/en
Publication of JPH043057B2 publication Critical patent/JPH043057B2/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
    • H01J31/124—Flat display tubes using electron beam scanning

Landscapes

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

Abstract

PURPOSE:To effectively correct the distortion of a beam spot by forming a focussing lens system which weakens the degree of reduction related to the beam that makes landing in the range farther from an electron gun among the beams which are emitted from the electron gun and advance toward the main deflection system. CONSTITUTION:An end face plate 8 is provided on the end of electron gun 2 which is opposed to its final stage electrode, namely the vertical deflection means 7 of the fourth grid G4 and an electron beam penetrating hole 8a is perforated in it. The diameter phi of this penetrating hole 8a is selected to almost the same to the gap, on the beam incidence side, between a pair of electrostatic deflection plates 7a and 7b of a vertical deflection means 7. The gap between the end face plate 8 and the means 7 is selected also almost equal to the gap (d) on the beam incidence side of both electrode plates 7a and 7b. Besides, target voltage V0, for example, 5KV is applied to the fourth gride G4. This can effectively correct the distortion of a beam spot and reproduce a good quality picture without any picture distortion, degradation of resolution, and color shift.
JP8709780A 1980-06-26 1980-06-26 Flat type cathode-ray tube Granted JPS5713653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8709780A JPS5713653A (en) 1980-06-26 1980-06-26 Flat type cathode-ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8709780A JPS5713653A (en) 1980-06-26 1980-06-26 Flat type cathode-ray tube

Publications (2)

Publication Number Publication Date
JPS5713653A true JPS5713653A (en) 1982-01-23
JPH043057B2 JPH043057B2 (en) 1992-01-21

Family

ID=13905439

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8709780A Granted JPS5713653A (en) 1980-06-26 1980-06-26 Flat type cathode-ray tube

Country Status (1)

Country Link
JP (1) JPS5713653A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983000406A1 (en) * 1981-07-22 1983-02-03 Sato, Hiroki Flat cathode ray tube
CN1323203C (en) * 2002-05-16 2007-06-27 北菱电兴株式会社 Weft contact part and weft detecting method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983000406A1 (en) * 1981-07-22 1983-02-03 Sato, Hiroki Flat cathode ray tube
EP0084063A1 (en) * 1981-07-22 1983-07-27 Sony Corporation Flat cathode ray tube
CN1323203C (en) * 2002-05-16 2007-06-27 北菱电兴株式会社 Weft contact part and weft detecting method

Also Published As

Publication number Publication date
JPH043057B2 (en) 1992-01-21

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