GB1259965A - Method of assembling electron gun structures for cathode ray tubes - Google Patents

Method of assembling electron gun structures for cathode ray tubes

Info

Publication number
GB1259965A
GB1259965A GB11795/69A GB1179569A GB1259965A GB 1259965 A GB1259965 A GB 1259965A GB 11795/69 A GB11795/69 A GB 11795/69A GB 1179569 A GB1179569 A GB 1179569A GB 1259965 A GB1259965 A GB 1259965A
Authority
GB
United Kingdom
Prior art keywords
electrode
post
electrodes
gun
guns
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
GB11795/69A
Inventor
Glen A Burdick
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.)
GTE Sylvania Inc
Original Assignee
GTE Sylvania 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
Priority claimed from US553752A external-priority patent/US3396297A/en
Priority to US711074A priority Critical patent/US3509609A/en
Priority to US711073A priority patent/US3524235A/en
Application filed by GTE Sylvania Inc filed Critical GTE Sylvania Inc
Priority to GB11796/69A priority patent/GB1259966A/en
Priority to GB11795/69A priority patent/GB1259965A/en
Publication of GB1259965A publication Critical patent/GB1259965A/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
    • H01J29/48—Electron guns
    • H01J29/50—Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube
    • H01J29/506—Electron guns two or more guns in a single vacuum space, e.g. for plural-ray tube guns in delta or circular configuration
    • 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
    • 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
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/18—Assembling together the component parts of electrode systems

Landscapes

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

Abstract

1,259,965. Electron guns. G.T.E. SYLVANIA Inc. 5 March, 1969 [6 March, 1968], No. 11795/69. Heading H1D. In a multi-gun structure the electrodes of each gun are cylindrical and each electrode has a maximum diameter which is at least equal to the maximum diameter of the preceding electrode to facilitate assembly in a jig. In the guns shown in Fig. 4 the G2 electrode 33 of each gun has an outwardly rolled edge; in a modification (Fig. 6, not shown), the edge is rolled inwardly and the diameter of the main part of electrode is the same as that of the succeeding G3 electrode, and in another modification (Fig. 7, not shown) the edge is not rolled but is polished so as to be free of burrs. The G4 electrode 39 is cylindrical with polished edges which surround adjacent portions of the associated G3 and G5 electrodes 34 and 40, the electrodes G3-G5 constituting a low focus voltage unipotential lens. Assembling electron guns.-The lowermost electrode 31 with its associated cathode is loaded into a support segment 71 which is generally rectangular with a curved edge adapted to receive the electrode; a space 77 is placed above the electrode and the other electrodes and spacers are stacked above to complete a gun assembly 93 with an associated alignment rod 68 passing through all the electrode supports and spacers. In the case of a triple gun in a colour television tube, these assemblies 93 are mounted in a holder 95 so that the electrodes are positioned against a central support post 99 and a cap 101 is placed over the rods 68 and 99. Studs 45 extending from each electrode are secured to support rods (not shown), and the cap 101 is removed to allow the support segments and spacers to be removed and the support post 99 to be withdrawn. In Fig. 4 the post 99 is conical, but if the guns are to be parallel the post may be cylindrical (Fig. 9, not shown), or if the guns are to be asymmetrical the post 99 is also asymmetrical (Figs. 10 and 11, not shown). The post may have a cross-section which is triangular (Fig. 12, not shown) or fluted (Fig. 13, not shown).
GB11795/69A 1966-05-31 1969-03-05 Method of assembling electron gun structures for cathode ray tubes Expired GB1259965A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US711074A US3509609A (en) 1966-05-31 1968-03-06 Means for assembling a multiple electron gun structure for cathode ray tube
US711073A US3524235A (en) 1966-05-31 1968-03-06 Method for assembling a multiple electron gun structure for cathode ray tube
GB11796/69A GB1259966A (en) 1966-05-31 1969-03-05 Method of assembling electron gun structures for cathode ray tubes
GB11795/69A GB1259965A (en) 1966-05-31 1969-03-05 Method of assembling electron gun structures for cathode ray tubes

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US553752A US3396297A (en) 1966-05-31 1966-05-31 Multiple electron gun structure for cathode ray tube
US71107368A 1968-03-06 1968-03-06
US71107468A 1968-03-06 1968-03-06
GB11796/69A GB1259966A (en) 1966-05-31 1969-03-05 Method of assembling electron gun structures for cathode ray tubes
GB11795/69A GB1259965A (en) 1966-05-31 1969-03-05 Method of assembling electron gun structures for cathode ray tubes

Publications (1)

Publication Number Publication Date
GB1259965A true GB1259965A (en) 1972-01-12

Family

ID=27516085

Family Applications (2)

Application Number Title Priority Date Filing Date
GB11795/69A Expired GB1259965A (en) 1966-05-31 1969-03-05 Method of assembling electron gun structures for cathode ray tubes
GB11796/69A Expired GB1259966A (en) 1966-05-31 1969-03-05 Method of assembling electron gun structures for cathode ray tubes

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB11796/69A Expired GB1259966A (en) 1966-05-31 1969-03-05 Method of assembling electron gun structures for cathode ray tubes

Country Status (2)

Country Link
US (2) US3524235A (en)
GB (2) GB1259965A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4500808A (en) * 1982-04-02 1985-02-19 Rca Corporation Multibeam electron gun with composite electrode having plurality of separate metal plates
US4607187A (en) * 1984-08-22 1986-08-19 Rca Corporation Structure for and method of aligning beam-defining apertures by means of alignment apertures
US4605880A (en) * 1984-08-22 1986-08-12 Rca Corporation Multibeam electron gun having a cathode-grid subassembly and method of assembling same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3340035A (en) * 1964-09-28 1967-09-05 Rauland Corp Cathode-ray tube manufacturing apparatus
US3289268A (en) * 1964-10-27 1966-12-06 Sylvania Electric Prod Assembly jig
US3434819A (en) * 1966-06-10 1969-03-25 Kentucky Electronics Inc Color gun beading apparatus
US3363298A (en) * 1966-06-10 1968-01-16 Kentucky Electronics Inc Crt color gun positioning and assembly jig
US3399440A (en) * 1966-08-19 1968-09-03 Motorola Inc Manufacture of cathode ray tubes

Also Published As

Publication number Publication date
GB1259966A (en) 1972-01-12
US3509609A (en) 1970-05-05
US3524235A (en) 1970-08-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees