GB2049989B - Cathodes ray tube having low voltage focus and dynamic correction - Google Patents

Cathodes ray tube having low voltage focus and dynamic correction

Info

Publication number
GB2049989B
GB2049989B GB8005497A GB8005497A GB2049989B GB 2049989 B GB2049989 B GB 2049989B GB 8005497 A GB8005497 A GB 8005497A GB 8005497 A GB8005497 A GB 8005497A GB 2049989 B GB2049989 B GB 2049989B
Authority
GB
United Kingdom
Prior art keywords
low voltage
ray tube
dynamic correction
voltage focus
cathodes
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.)
Expired
Application number
GB8005497A
Other languages
English (en)
Other versions
GB2049989A (en
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.)
Tektronix Inc
Original Assignee
Tektronix Inc
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 Tektronix Inc filed Critical Tektronix Inc
Publication of GB2049989A publication Critical patent/GB2049989A/en
Application granted granted Critical
Publication of GB2049989B publication Critical patent/GB2049989B/en
Expired 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
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • H01J29/62—Electrostatic lenses
    • H01J29/622—Electrostatic lenses producing fields exhibiting symmetry of revolution
    • H01J29/624—Electrostatic lenses producing fields exhibiting symmetry of revolution co-operating with or closely associated to an electron gun
    • 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
    • H01J29/58—Arrangements for focusing or reflecting ray or beam
    • 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
GB8005497A 1979-05-14 1980-02-19 Cathodes ray tube having low voltage focus and dynamic correction Expired GB2049989B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/038,606 US4277722A (en) 1978-02-15 1979-05-14 Cathode ray tube having low voltage focus and dynamic correction

Publications (2)

Publication Number Publication Date
GB2049989A GB2049989A (en) 1980-12-31
GB2049989B true GB2049989B (en) 1983-04-27

Family

ID=21900867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8005497A Expired GB2049989B (en) 1979-05-14 1980-02-19 Cathodes ray tube having low voltage focus and dynamic correction

Country Status (7)

Country Link
US (1) US4277722A (enExample)
JP (1) JPS55151752A (enExample)
CA (1) CA1139007A (enExample)
DE (1) DE3018171A1 (enExample)
FR (1) FR2457014A2 (enExample)
GB (1) GB2049989B (enExample)
NL (1) NL8001395A (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496877A (en) * 1982-04-06 1985-01-29 Zenith Electronics Corporation Unipotential electron gun for short cathode ray tubes
US4639644A (en) * 1984-01-30 1987-01-27 Raytheon Company High voltage dynamic focusing system
JPS6199249A (ja) * 1984-10-18 1986-05-17 Matsushita Electronics Corp 受像管装置
JPH0719541B2 (ja) * 1985-04-30 1995-03-06 株式会社日立製作所 インライン型カラー受像管
US4772826A (en) * 1986-06-26 1988-09-20 Rca Licensing Corporation Color display system
JP2569027B2 (ja) * 1986-12-05 1997-01-08 株式会社日立製作所 カラ−受像管用電子銃
EP0283941B1 (en) * 1987-03-25 1993-06-09 Iwatsu Electric Co., Ltd. Cathode ray tube having an electron gun constructed for readay refocusing of the electron beam
US4812718A (en) * 1987-12-14 1989-03-14 The United States Of America As Represented By The Secretary Of The Air Force Resolution delta gun color monitor system apparatus
US5262702A (en) * 1989-03-23 1993-11-16 Kabushiki Kaisha Toshiba Color cathode-ray tube apparatus
US6841924B1 (en) * 1999-11-03 2005-01-11 Intel Corporation Low-voltage high-resolution einzel gun

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB458744A (en) * 1935-03-19 1936-12-21 John Edgar Keyston Improvements in and relating to cathode ray tubes
FR1127986A (fr) * 1955-06-16 1956-12-28 Csf Perfectionnement aux canons électroniques des tubes à mémoire
US2922072A (en) * 1957-12-05 1960-01-19 Sylvania Electric Prod Image reproduction device
US3319110A (en) * 1966-05-12 1967-05-09 Gen Electric Electron focus projection and scanning system
US3603839A (en) * 1968-06-04 1971-09-07 Victor Company Of Japan Color television picture tube of the single electron gun type
US4052643A (en) * 1972-04-12 1977-10-04 Hitachi, Ltd. Electron guns for use in cathode ray tubes
DE2449936C3 (de) * 1974-10-21 1980-01-24 Genrich Dmitrievitsch Fryasino Moskovskoi Oblasti Balandin Elektronenstrahlröhre mit veränderlicher Strahlgeschwindigkeit
JPS545374A (en) * 1977-06-15 1979-01-16 Hitachi Ltd Electronic gun
GB2015195A (en) * 1978-02-15 1979-09-05 Tektronix Inc Cathode Ray Tube Having Low Voltage Focus and Dynamic Correction

Also Published As

Publication number Publication date
GB2049989A (en) 1980-12-31
JPS55151752A (en) 1980-11-26
DE3018171A1 (de) 1980-11-27
US4277722A (en) 1981-07-07
FR2457014A2 (fr) 1980-12-12
NL8001395A (nl) 1980-11-18
CA1139007A (en) 1983-01-04
FR2457014B2 (enExample) 1985-03-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940219