GB2085698B - Stigmator for cathode ray tube - Google Patents

Stigmator for cathode ray tube

Info

Publication number
GB2085698B
GB2085698B GB8129616A GB8129616A GB2085698B GB 2085698 B GB2085698 B GB 2085698B GB 8129616 A GB8129616 A GB 8129616A GB 8129616 A GB8129616 A GB 8129616A GB 2085698 B GB2085698 B GB 2085698B
Authority
GB
United Kingdom
Prior art keywords
stigmator
ray tube
cathode ray
cathode
tube
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
GB8129616A
Other versions
GB2085698A (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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB8129616A priority Critical patent/GB2085698B/en
Publication of GB2085698A publication Critical patent/GB2085698A/en
Application granted granted Critical
Publication of GB2085698B publication Critical patent/GB2085698B/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
    • H01J29/56—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/26—Modifications of scanning arrangements to improve focusing
GB8129616A 1980-10-02 1981-10-01 Stigmator for cathode ray tube Expired GB2085698B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8129616A GB2085698B (en) 1980-10-02 1981-10-01 Stigmator for cathode ray tube

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8031761 1980-10-02
GB8129616A GB2085698B (en) 1980-10-02 1981-10-01 Stigmator for cathode ray tube

Publications (2)

Publication Number Publication Date
GB2085698A GB2085698A (en) 1982-04-28
GB2085698B true GB2085698B (en) 1984-08-15

Family

ID=26277079

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8129616A Expired GB2085698B (en) 1980-10-02 1981-10-01 Stigmator for cathode ray tube

Country Status (1)

Country Link
GB (1) GB2085698B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8601511A (en) * 1986-06-11 1988-01-04 Philips Nv CATHODE BEAM WITH MAGNETIC FOCUSING LENS.
NL8601512A (en) * 1986-06-11 1988-01-04 Philips Nv CATHODE BEAM WITH MAGNETIC FOCUSING LENS.
US5382888A (en) * 1992-01-10 1995-01-17 Thomson Tubes & Displays, S.A. Focusing device with two dynamic windings for energy recovery
EP0551025B1 (en) * 1992-01-10 1996-08-21 THOMSON TUBES & DISPLAYS S.A. Low power consumption dynamic focusing circuit
EP0551027B1 (en) * 1992-01-10 1997-09-17 THOMSON TUBES & DISPLAYS S.A. Magnetic focusing device
SG92590A1 (en) * 1992-03-27 2002-11-19 Thomson Tubes & Displays Permanent magnet focus unit wihh integral astigmatism corrector
US5489826A (en) * 1994-08-08 1996-02-06 Thomson Consumer Electronics, Inc. Focus coil current generator for a cathode ray tube
DE69507344T2 (en) 1995-01-24 1999-09-09 Ibm METHOD AND DEVICE FOR GRID DEMODULATION

Also Published As

Publication number Publication date
GB2085698A (en) 1982-04-28

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Legal Events

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

Effective date: 20001001