EP0021275A1 - Vorrichtung zum Einstellen des Ablenksystems einer Farbbildröhre - Google Patents

Vorrichtung zum Einstellen des Ablenksystems einer Farbbildröhre Download PDF

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Publication number
EP0021275A1
EP0021275A1 EP80103300A EP80103300A EP0021275A1 EP 0021275 A1 EP0021275 A1 EP 0021275A1 EP 80103300 A EP80103300 A EP 80103300A EP 80103300 A EP80103300 A EP 80103300A EP 0021275 A1 EP0021275 A1 EP 0021275A1
Authority
EP
European Patent Office
Prior art keywords
deflection system
tube
axis
cathode ray
ray 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.)
Withdrawn
Application number
EP80103300A
Other languages
German (de)
English (en)
French (fr)
Inventor
Walter Kornaker
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of EP0021275A1 publication Critical patent/EP0021275A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/44—Factory adjustment of completed discharge tubes or lamps to comply with desired tolerances

Definitions

  • the invention relates to a device for adjusting the deflection system of a color picture tube.
  • a grid is generally written out on the screen for adjusting the deflection system.
  • the horizontal and vertical lines of the grid are adjusted by turning the deflection system around the tube axis.
  • a shift in the direction of the axis causes color purity.
  • the rear end of the deflection system is attached to the tube neck and tilted around this attachment point with respect to the tube axis.
  • the adjustment movements are carried out until the deviations are within specified tolerances.
  • the grid on the screen is viewed and the deflection system adjusted so that recognizable errors are reduced.
  • the deflection system is adjusted by hand in the previously known devices.
  • the deflection system is positioned in relation to the tube, e.g. fixed by inserting wedges between the tube and the deflection system.
  • the object of the invention is therefore to provide a generic setting device with which the deflection system can be set on a color picture tube precisely and without physical effort.
  • the device according to the invention has many advantages. By clamping the deflection system in a holding device, a more precise and faster adjustment than by hand is possible. Not only is the uncomfortable posture eliminated for the adjuster, but he also no longer runs the risk of coming into contact with the high voltage applied to the operated tube. Due to the physical relief of the adjuster, the adjuster can concentrate even more on the adjustment process and further increase the adjustment quality.
  • a deflection system 2 On a color picture tube 1, a deflection system 2 is attached, namely at its front end by wedges 3 pushed between the tube and the deflection system and at its rear end by a sleeve with a clamp 4 with the diameter of the tube neck 5.
  • a Multipole unit 6 On the tube neck 5 there is also one Multipole unit 6, which is used to adjust the static convergence.
  • the tube sits on a slide 7 which can be displaced in the direction of the tube axis.
  • the deflection system is held by a holding device 8.
  • the tube is supplied with voltage via contacting devices 9 and 9a.
  • the receiving device 8 is mounted on a guide 10 in the direction of the tube axis. It consists of a rear clamping device 11 and a front guide device 12.
  • the clamping device has a receiving ring 13 and clamping jaws 14.
  • the deflection system 2 is inserted into the receiving ring 13 with a tension 15 attached at its rear end and then clamped by the jaws 14.
  • the receiving ring is gimbal-mounted, in the exemplary embodiment in that it is inserted into a spherical cap-shaped holder (16) whose center of curvature lies on the axis which coincides with the tube axis when the tube is pushed into the device.
  • the ring and thus the deflection system can be rotated about the tube axis and tilted in any direction towards it.
  • the guide 10 thus enables the displacement and the gimbal suspension of the receiving ring enables the deflection system to be rotated and tilted.
  • the workflow is as follows: First, a deflection system, as just described, is fastened in the clamping device 11. Then a tube 1 with a multi-pole unit is placed on the carriage 7, inserted into the adjusting device and contacted by the contacts 9 and 9a. Then a grid is written out on the screen and the deflection system is rotated by adjusting the peg 17 until the grid lines run horizontally and vertically. The so taken setting is fixed. The color purity is set by switching on a color image and moving the deflection system on the guide 10 in the direction of the tube axis. The deflection system is then attached to the tube neck by tightening the clamp 4.
  • the last setting to be carried out is that of convergence, which takes place when the grid is written out by tilting the deflection system with respect to the tube axis.
  • this tilting takes place with the aid of the guide device 12.
  • the essential part of this guide device is a plate 18 with a circular cutout, which encloses a front guide ring 19 of the deflection system. So that the guide ring 19 slides well in the cutout of the plate 18, this cutout is provided with crowned sliding shoes 20.
  • the plate 18 is vertically and laterally displaceable to the tube axis. Since the deflection system is gimbal-mounted with its rear receiving ring 13, it tilts with respect to the tube axis when the plate 18 is displaced.
  • the deflection system is fixed in its set position by inserting wedges 3 between the deflection system and the tube.
  • the wedges can be secured with adhesive.
  • All movements described are carried out by setting from the front and mechanical implementation on the moving parts.
  • the setting can be made quickly, conveniently and safely only from the front while at the same time providing good direct supervision of the screen image that has been created.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
EP80103300A 1979-06-21 1980-06-13 Vorrichtung zum Einstellen des Ablenksystems einer Farbbildröhre Withdrawn EP0021275A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2924949 1979-06-21
DE19792924949 DE2924949A1 (de) 1979-06-21 1979-06-21 Vorrichtung zum einstellen des ablenksystems einer farbbildroehre

Publications (1)

Publication Number Publication Date
EP0021275A1 true EP0021275A1 (de) 1981-01-07

Family

ID=6073716

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80103300A Withdrawn EP0021275A1 (de) 1979-06-21 1980-06-13 Vorrichtung zum Einstellen des Ablenksystems einer Farbbildröhre

Country Status (4)

Country Link
EP (1) EP0021275A1 (fi)
JP (1) JPS5645545A (fi)
DE (1) DE2924949A1 (fi)
FI (1) FI801948A (fi)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506105A1 (fr) * 1981-05-15 1982-11-19 Rca Corp Procede et dispositif de manipulation et d'ajustement d'un systeme de visualisation de television
EP0068182A1 (de) * 1981-06-12 1983-01-05 International Standard Electric Corporation Kathodenstrahlröhre mit Magnetring
EP0175619A2 (fr) * 1984-09-21 1986-03-26 Videocolor Procédé de réglage d'un déviateur pour tube de télévision à trois canons en ligne, et appareil mettant en oeuvre le procédé
CN1080815C (zh) * 1996-05-08 2002-03-13 Mtu发动机联同涡轮机慕尼黑有限公司 毛刷密封件

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654548A (en) * 1969-11-24 1972-04-04 Zenith Radio Corp Final test arrangement for color cathode-ray tube
US3992578A (en) * 1976-01-08 1976-11-16 General Instrument Of Canada Ltd. Yoke mounting apparatus
JPS549524A (en) * 1977-06-24 1979-01-24 Hitachi Ltd Deflecting yoke rotating mechanism
JPS5423419A (en) * 1977-07-25 1979-02-22 Hitachi Ltd Convergence adjustor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654548A (en) * 1969-11-24 1972-04-04 Zenith Radio Corp Final test arrangement for color cathode-ray tube
US3992578A (en) * 1976-01-08 1976-11-16 General Instrument Of Canada Ltd. Yoke mounting apparatus
JPS549524A (en) * 1977-06-24 1979-01-24 Hitachi Ltd Deflecting yoke rotating mechanism
JPS5423419A (en) * 1977-07-25 1979-02-22 Hitachi Ltd Convergence adjustor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506105A1 (fr) * 1981-05-15 1982-11-19 Rca Corp Procede et dispositif de manipulation et d'ajustement d'un systeme de visualisation de television
EP0068182A1 (de) * 1981-06-12 1983-01-05 International Standard Electric Corporation Kathodenstrahlröhre mit Magnetring
EP0175619A2 (fr) * 1984-09-21 1986-03-26 Videocolor Procédé de réglage d'un déviateur pour tube de télévision à trois canons en ligne, et appareil mettant en oeuvre le procédé
EP0175619A3 (en) * 1984-09-21 1987-12-02 Videocolor Method and apparatus for adjusting the deflection unit of an in-line television tube
CN1080815C (zh) * 1996-05-08 2002-03-13 Mtu发动机联同涡轮机慕尼黑有限公司 毛刷密封件

Also Published As

Publication number Publication date
DE2924949A1 (de) 1981-01-15
FI801948A (fi) 1980-12-22
JPS5645545A (en) 1981-04-25

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE FR GB IT NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19811214

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KORNAKER, WALTER