JPS5738542A - Electron gun - Google Patents

Electron gun

Info

Publication number
JPS5738542A
JPS5738542A JP11457380A JP11457380A JPS5738542A JP S5738542 A JPS5738542 A JP S5738542A JP 11457380 A JP11457380 A JP 11457380A JP 11457380 A JP11457380 A JP 11457380A JP S5738542 A JPS5738542 A JP S5738542A
Authority
JP
Japan
Prior art keywords
electron gun
electrode
perveance
electrode section
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.)
Pending
Application number
JP11457380A
Other languages
Japanese (ja)
Inventor
Kozo Tateishi
Jun Nishida
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 JP11457380A priority Critical patent/JPS5738542A/en
Publication of JPS5738542A publication Critical patent/JPS5738542A/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 increase perveance and operate an electron gun in low control voltage by making rectangular the control electrode hole of the electron gun three-electrode section. CONSTITUTION:The hole of the control electrode 2 of an electron gun three-electrode section consisting of cathode 1, control electrode 2, and anode is made rectangular. Supposing that the dimensions of the three-electrode section are d1= 0.5D1-2D1, d2=d1-2.5d1, D1=t-5D1, D2=D1-4D1, and t=30-200mum, perveance P appears as 5X10<-6>-1X10<-5>(A/V<3/2>). As a result, the electron gun can be operated in low control voltage. Besides, the space charge replusion effect of an electron beam can be reduced and resolution be increased.
JP11457380A 1980-08-19 1980-08-19 Electron gun Pending JPS5738542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11457380A JPS5738542A (en) 1980-08-19 1980-08-19 Electron gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11457380A JPS5738542A (en) 1980-08-19 1980-08-19 Electron gun

Publications (1)

Publication Number Publication Date
JPS5738542A true JPS5738542A (en) 1982-03-03

Family

ID=14641210

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11457380A Pending JPS5738542A (en) 1980-08-19 1980-08-19 Electron gun

Country Status (1)

Country Link
JP (1) JPS5738542A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9400656A (en) * 1993-04-26 1994-11-16 Nokia Technology Gmbh Electron beam gun system.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9400656A (en) * 1993-04-26 1994-11-16 Nokia Technology Gmbh Electron beam gun system.

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