JPS5730247A - Cathode ray tube - Google Patents

Cathode ray tube

Info

Publication number
JPS5730247A
JPS5730247A JP10535080A JP10535080A JPS5730247A JP S5730247 A JPS5730247 A JP S5730247A JP 10535080 A JP10535080 A JP 10535080A JP 10535080 A JP10535080 A JP 10535080A JP S5730247 A JPS5730247 A JP S5730247A
Authority
JP
Japan
Prior art keywords
electron beam
grid electrode
section
main lens
beam section
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
JP10535080A
Other languages
Japanese (ja)
Other versions
JPH0138345B2 (en
Inventor
Masamichi Kimura
Nozomi Arimoto
Masato Taniguchi
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 Electronics 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 Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Priority to JP10535080A priority Critical patent/JPS5730247A/en
Priority to GB8122561A priority patent/GB2084394B/en
Priority to CA000382797A priority patent/CA1177971A/en
Priority to DE19813130137 priority patent/DE3130137A1/en
Publication of JPS5730247A publication Critical patent/JPS5730247A/en
Publication of JPH0138345B2 publication Critical patent/JPH0138345B2/ja
Granted 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 reduce the occurrence of the brooming by arranging a deceleration grid electrode at the main lens side of a prestage triode section while temporarily lowering the potential in the axis then performing the cross-over of the outside electron beam section of an electron beam directing toward the main less. CONSTITUTION:A deceleration grid electrode 6 is provided at the main lens side ML of a prestage triode section comprised of a cathode 2, first grid electrode 3 and a second grid electrode 5. For example, the applying voltages are 130V for the cathod, 600V for the second grid electrode and 150V for the deceleration grid electrode. Here only the outside electron beam section (B') of an electron beam emitted from the cathode 2 and crossed over near a prefocus lens (PL) will cross over again, and the virtual emitting point (P3) of the ouside electron beam section is shifted more than the virtual emitting point (P1) of the central electron beam section to the main lens (ML) side. Consequently the electron beam section passing through the circumferential section of the main lens is considerably reduced thus to reduce the occurrence of the brooming considerably.
JP10535080A 1980-07-30 1980-07-30 Cathode ray tube Granted JPS5730247A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP10535080A JPS5730247A (en) 1980-07-30 1980-07-30 Cathode ray tube
GB8122561A GB2084394B (en) 1980-07-30 1981-07-22 Cathode-ray tube driving apparatus
CA000382797A CA1177971A (en) 1980-07-30 1981-07-29 Electron gun for cathode-ray tube
DE19813130137 DE3130137A1 (en) 1980-07-30 1981-07-30 CATHODE RAY TUBE CONTROL DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10535080A JPS5730247A (en) 1980-07-30 1980-07-30 Cathode ray tube

Publications (2)

Publication Number Publication Date
JPS5730247A true JPS5730247A (en) 1982-02-18
JPH0138345B2 JPH0138345B2 (en) 1989-08-14

Family

ID=14405277

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10535080A Granted JPS5730247A (en) 1980-07-30 1980-07-30 Cathode ray tube

Country Status (1)

Country Link
JP (1) JPS5730247A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59175543A (en) * 1983-03-25 1984-10-04 Matsushita Electronics Corp Cathode ray tube
US4591760A (en) * 1983-03-25 1986-05-27 Matsushita Electronics Corporation Cathode ray tube apparatus
US5262702A (en) * 1989-03-23 1993-11-16 Kabushiki Kaisha Toshiba Color cathode-ray tube apparatus
KR100337858B1 (en) * 1994-10-31 2002-10-25 삼성에스디아이 주식회사 Electron gun for color cathode ray tube

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1053523C (en) * 1996-05-24 2000-06-14 北京·松下彩色显象管有限公司 Electron gun for color CRT

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50146264A (en) * 1974-05-13 1975-11-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50146264A (en) * 1974-05-13 1975-11-22

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59175543A (en) * 1983-03-25 1984-10-04 Matsushita Electronics Corp Cathode ray tube
US4591760A (en) * 1983-03-25 1986-05-27 Matsushita Electronics Corporation Cathode ray tube apparatus
US5262702A (en) * 1989-03-23 1993-11-16 Kabushiki Kaisha Toshiba Color cathode-ray tube apparatus
KR100337858B1 (en) * 1994-10-31 2002-10-25 삼성에스디아이 주식회사 Electron gun for color cathode ray tube
CN1097839C (en) * 1994-10-31 2003-01-01 三星电管株式会社 Electron gun for color cathode ray tube

Also Published As

Publication number Publication date
JPH0138345B2 (en) 1989-08-14

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