FR2445016A1 - CONE FOR CATHODE RAY TUBE AND METHOD FOR MANUFACTURING SAID CONE - Google Patents

CONE FOR CATHODE RAY TUBE AND METHOD FOR MANUFACTURING SAID CONE

Info

Publication number
FR2445016A1
FR2445016A1 FR7931061A FR7931061A FR2445016A1 FR 2445016 A1 FR2445016 A1 FR 2445016A1 FR 7931061 A FR7931061 A FR 7931061A FR 7931061 A FR7931061 A FR 7931061A FR 2445016 A1 FR2445016 A1 FR 2445016A1
Authority
FR
France
Prior art keywords
cone
cathode ray
machined
ray tube
welding edge
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
FR7931061A
Other languages
French (fr)
Other versions
FR2445016B1 (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.)
Schott AG
Original Assignee
Jenaer Glaswerk Schott and Gen
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 Jenaer Glaswerk Schott and Gen filed Critical Jenaer Glaswerk Schott and Gen
Publication of FR2445016A1 publication Critical patent/FR2445016A1/en
Application granted granted Critical
Publication of FR2445016B1 publication Critical patent/FR2445016B1/fr
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
    • H01J29/82—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements
    • H01J29/823—Mounting, supporting, spacing, or insulating electron-optical or ion-optical arrangements around the neck of the tube
    • H01J29/826—Deflection arrangements
    • 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
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/244—Manufacture or joining of vessels, leading-in conductors or bases specially adapted for cathode ray tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

Cône pour tube à rayons cathodiques surtout pour tube images de télévision en couleurs assurant l'orientation précise du col du tube. Sur la surface extérieure du cône dans la région de la parabole sont formées trois pattes 3 dont la surface 3' est usinée de sorte qu'un point sur chaque surface se trouve dans un premier plan de référence A sur un cercle commun de centre a, à une distance d1 du bord de soudage du cône et trois autres points sur le col se trouvent dans un deuxième plan de référence B sur un cercle commun de centre b, à distance d2 du bord de soudage. Le cône avec le bord de soudage pré-usiné est placé avec ledit bord sur le plateau d'une machine, on oriente l'axe a-b suivant l'axe vertical de la machine et on usine par fraisage les pattes sur lesquelles sera fixée et orientée la bobine de déviation. Applications : aux tubes cathodiques surtout pour tubes images de télévision en couleurs.Cone for cathode ray tube especially for color television picture tube ensuring precise orientation of the tube neck. On the outer surface of the cone in the region of the parabola are formed three tabs 3 whose surface 3 'is machined so that a point on each surface is in a first reference plane A on a common circle of center a, at a distance d1 from the welding edge of the cone and three other points on the neck are in a second reference plane B on a common circle with center b, at a distance d2 from the welding edge. The cone with the pre-machined welding edge is placed with said edge on the plate of a machine, the axis ab is oriented along the vertical axis of the machine and the tabs on which will be fixed and oriented are machined by milling. the deflection coil. Applications: in cathode ray tubes, especially for color television picture tubes.

FR7931061A 1978-12-22 1979-12-19 CONE FOR CATHODE RAY TUBE AND METHOD FOR MANUFACTURING SAID CONE Granted FR2445016A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782855472 DE2855472C2 (en) 1978-12-22 1978-12-22 Method of manufacturing a funnel for a cathode ray tube

Publications (2)

Publication Number Publication Date
FR2445016A1 true FR2445016A1 (en) 1980-07-18
FR2445016B1 FR2445016B1 (en) 1983-07-08

Family

ID=6057984

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7931061A Granted FR2445016A1 (en) 1978-12-22 1979-12-19 CONE FOR CATHODE RAY TUBE AND METHOD FOR MANUFACTURING SAID CONE

Country Status (11)

Country Link
JP (1) JPS55102161A (en)
BE (1) BE880784A (en)
BR (1) BR7908379A (en)
CS (1) CS256361B2 (en)
DD (1) DD148125A1 (en)
DE (1) DE2855472C2 (en)
FR (1) FR2445016A1 (en)
GB (1) GB2051467B (en)
NL (1) NL7909155A (en)
PL (1) PL220562A1 (en)
RO (1) RO76834A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4443241A1 (en) * 1994-11-24 1996-05-30 Witeg Wissenschaftlich Tech Ge CRT evacuation and sealing method and apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB572813A (en) * 1943-05-29 1945-10-24 Ferranti Ltd Improvements relating to the mounting of members within and without an electric discharge tube in desired mutual spatial relationship
FR1513164A (en) * 1966-03-09 1968-02-09 Motorola Inc Mounting device for cathode ray tube deflection system
US3369881A (en) * 1964-10-28 1968-02-20 Corning Glass Works Cathode ray tube envelopes and methods of preparing parts therefor and fabricating such envelopes
US3381347A (en) * 1964-09-03 1968-05-07 Motorola Inc Cathode ray tube manufacture

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS523551B1 (en) * 1970-10-30 1977-01-28
DE2626114A1 (en) * 1976-06-10 1977-12-22 Standard Elektrik Lorenz Ag ARRANGEMENT FOR FASTENING THE DEFLECTION SYSTEM TO THE PISTON OF A COLOR TUBE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB572813A (en) * 1943-05-29 1945-10-24 Ferranti Ltd Improvements relating to the mounting of members within and without an electric discharge tube in desired mutual spatial relationship
US3381347A (en) * 1964-09-03 1968-05-07 Motorola Inc Cathode ray tube manufacture
US3369881A (en) * 1964-10-28 1968-02-20 Corning Glass Works Cathode ray tube envelopes and methods of preparing parts therefor and fabricating such envelopes
FR1513164A (en) * 1966-03-09 1968-02-09 Motorola Inc Mounting device for cathode ray tube deflection system

Also Published As

Publication number Publication date
NL7909155A (en) 1980-06-24
PL220562A1 (en) 1980-11-03
DE2855472C2 (en) 1984-06-20
FR2445016B1 (en) 1983-07-08
RO76834A (en) 1981-05-30
BR7908379A (en) 1980-09-09
GB2051467A (en) 1981-01-14
DD148125A1 (en) 1981-05-06
CS256361B2 (en) 1988-04-15
DE2855472A1 (en) 1980-06-26
GB2051467B (en) 1983-01-19
BE880784A (en) 1980-04-16
CS865579A2 (en) 1987-09-17
JPS55102161A (en) 1980-08-05

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse