JPS5535419A - Electron gun - Google Patents

Electron gun

Info

Publication number
JPS5535419A
JPS5535419A JP10790278A JP10790278A JPS5535419A JP S5535419 A JPS5535419 A JP S5535419A JP 10790278 A JP10790278 A JP 10790278A JP 10790278 A JP10790278 A JP 10790278A JP S5535419 A JPS5535419 A JP S5535419A
Authority
JP
Japan
Prior art keywords
control electrode
current control
anode
diameter
cathode
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
JP10790278A
Other languages
Japanese (ja)
Other versions
JPH0332172B2 (en
Inventor
Taichi Shino
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 JP10790278A priority Critical patent/JPS5535419A/en
Publication of JPS5535419A publication Critical patent/JPS5535419A/en
Publication of JPH0332172B2 publication Critical patent/JPH0332172B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To form a crossover part of a high current density on an aperture by forming the diameter of a hold on a cathode current control electrode provided over a cathode equal to the distance between the cathode current control electrode and an anode.
CONSTITUTION: Anode 3 being a flat plate electrode in stead of being a double structure electrode, the diameter of a cathode current control electrode 2 is equal to the distance between the cathode current control electrode 2 and the anode 3, which allows a crossover part 6 of a high current density to be disposed on an aperture 7 so that the quantity and the divergence angle of electron beams 5' are increased. On the other hand, when the diameter of limiting aperture 8 is as small as to sufficiently limit the electrom beam divergence, the divergence angle of electron beams 5 can be reduced and the divergence angle of the current density is made uniform.
COPYRIGHT: (C)1980,JPO&Japio
JP10790278A 1978-09-01 1978-09-01 Electron gun Granted JPS5535419A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10790278A JPS5535419A (en) 1978-09-01 1978-09-01 Electron gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10790278A JPS5535419A (en) 1978-09-01 1978-09-01 Electron gun

Publications (2)

Publication Number Publication Date
JPS5535419A true JPS5535419A (en) 1980-03-12
JPH0332172B2 JPH0332172B2 (en) 1991-05-10

Family

ID=14470958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10790278A Granted JPS5535419A (en) 1978-09-01 1978-09-01 Electron gun

Country Status (1)

Country Link
JP (1) JPS5535419A (en)

Also Published As

Publication number Publication date
JPH0332172B2 (en) 1991-05-10

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