JPS569946A - Electron gun - Google Patents

Electron gun

Info

Publication number
JPS569946A
JPS569946A JP8569079A JP8569079A JPS569946A JP S569946 A JPS569946 A JP S569946A JP 8569079 A JP8569079 A JP 8569079A JP 8569079 A JP8569079 A JP 8569079A JP S569946 A JPS569946 A JP S569946A
Authority
JP
Japan
Prior art keywords
potential
electrode
electrodes
electron lens
tripotential
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
JP8569079A
Other languages
Japanese (ja)
Inventor
Naohisa Yoshida
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 JP8569079A priority Critical patent/JPS569946A/en
Publication of JPS569946A publication Critical patent/JPS569946A/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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/48—Electron guns
    • H01J29/488—Schematic arrangements of the electrodes for beam forming; Place and form of the elecrodes

Abstract

PURPOSE:To obtain a similar spherical aberration to that in a tripotential typed electron lens, by providing another electrode between two electrodes with a different potential for constituting an electron lens and applying no direct potential to said new electrode. CONSTITUTION:An electrode 41 is a focus electrode and an electrode 43 is a final anode. Between the electrodes 41, 43 an electrode 42, to which no external potential is connected, is provided. A distribution of potential generated by these three electrodes 41-43 can be arranged the same as that of a tripotential typed electron lens in which its distribution of potential is generated by applying a potential from the outside, thus capable of decreasing a spherical aberration.
JP8569079A 1979-07-03 1979-07-03 Electron gun Pending JPS569946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8569079A JPS569946A (en) 1979-07-03 1979-07-03 Electron gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8569079A JPS569946A (en) 1979-07-03 1979-07-03 Electron gun

Publications (1)

Publication Number Publication Date
JPS569946A true JPS569946A (en) 1981-01-31

Family

ID=13865830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8569079A Pending JPS569946A (en) 1979-07-03 1979-07-03 Electron gun

Country Status (1)

Country Link
JP (1) JPS569946A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS644661A (en) * 1987-06-26 1989-01-09 Toyo Ink Mfg Co Baking paint excellent in adhesion to polyolefin
EP0692811A1 (en) * 1994-07-11 1996-01-17 Matsushita Electronics Corporation A color picture tube

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS644661A (en) * 1987-06-26 1989-01-09 Toyo Ink Mfg Co Baking paint excellent in adhesion to polyolefin
EP0692811A1 (en) * 1994-07-11 1996-01-17 Matsushita Electronics Corporation A color picture tube
US5675211A (en) * 1994-07-11 1997-10-07 Matsushita Electronics Corporation Color-picture tube having a supplementary electrode for obtaining a high resolution picture
CN1111895C (en) * 1994-07-11 2003-06-18 松下电器产业株式会社 Colour display tube dence

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