GB494644A - Cathode ray tubes - Google Patents

Cathode ray tubes

Info

Publication number
GB494644A
GB494644A GB5585/38A GB558538A GB494644A GB 494644 A GB494644 A GB 494644A GB 5585/38 A GB5585/38 A GB 5585/38A GB 558538 A GB558538 A GB 558538A GB 494644 A GB494644 A GB 494644A
Authority
GB
United Kingdom
Prior art keywords
cylinder
cathode
electrode
control electrode
secured
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
GB5585/38A
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.)
Alcatel Lucent Deutschland AG
C Lorenz AG
Original Assignee
Standard Elektrik Lorenz AG
C Lorenz AG
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 Standard Elektrik Lorenz AG, C Lorenz AG filed Critical Standard Elektrik Lorenz AG
Publication of GB494644A publication Critical patent/GB494644A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/36—Tubes with flat electrodes, e.g. disc electrode
    • 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
    • H01J29/485—Construction of the gun or of parts thereof

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

494,644. Cathode-ray tubes. LORENZ AKT.-GES., C. Feb. 22,1938, No. 5585. Convention date, Feb. 22, 1937. [Class 39 (i)] In order to secure the cathode in its correct position with respect to the control electrode and the remainder of the electrode system a closed tubular cathode with emissive substance on its end is rigidly secured in a cylindrical body which fits closely into a hollow cylinder and closes one end thereof, the other end being covered by a perforated diaphragm forming the control electrode ; the hollow cylinder is rigidly mounted in the electrode system. Fig. 1 shows a cathode 2 fitting into a flared opening into an insulating cylinder 1, which fits closely in a metal cylinder 12 mounted in discs 13 secured to the supporting rods 9 of the electrode system. The control electrode consists of a disc 6, formed with a flange fitting into a groove in the cylinder 1, and provided with a lug 8 welded to one of the discs 13 ; or the electrode may be fixed to the cylinder 12. Fig. 3 shows an arrangement in which the cylinder 1 is of metal of low heat conductivity and is seated by a flange 16 on a cylinder 18 welded to a disc 17 forming the control electrode, the cathode 2 being mounted on an insulated tube 15 secured to the cylinder 1.
GB5585/38A 1937-02-22 1938-02-22 Cathode ray tubes Expired GB494644A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE494644X 1937-02-22

Publications (1)

Publication Number Publication Date
GB494644A true GB494644A (en) 1938-10-28

Family

ID=6544755

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5585/38A Expired GB494644A (en) 1937-02-22 1938-02-22 Cathode ray tubes

Country Status (4)

Country Link
US (1) US2195914A (en)
BE (1) BE426509A (en)
FR (1) FR834085A (en)
GB (1) GB494644A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747206C (en) * 1939-10-22 1944-10-02 Fernseh Gmbh Electrode arrangement for cathode ray tubes
BE455024A (en) * 1940-05-02
BE474126A (en) * 1942-12-01
US2451813A (en) * 1943-03-30 1948-10-19 Westinghouse Electric Corp Electron discharge device having an electron beam passage and aligning means therewith for the cathode
US2419757A (en) * 1944-05-31 1947-04-29 Jr Abraham Binneweg Mounted flat element radio tube
US2465370A (en) * 1944-06-26 1949-03-29 Standard Telephones Cables Ltd Ultra high frequency electron discharge device
DE838168C (en) * 1944-12-28 1952-03-27 A. C. Cossor Limited, London cathode ray tube
FR964331A (en) * 1947-04-09 1950-08-10
US2570165A (en) * 1949-08-16 1951-10-02 Rca Corp Limited-area cathode
US3484641A (en) * 1963-11-18 1969-12-16 Sylvania Electric Prod Electron gun with expanded insulator posts
US3317981A (en) * 1963-11-18 1967-05-09 Sylvania Electric Prod Expanding hollow plastic posts on opposite sides of electrode apertures for gripping electrodes
US3594601A (en) * 1970-01-28 1971-07-20 Kentucky Electronics Corp Holder and mounting means for ceramic crt cathode ring
US5202615A (en) * 1990-08-30 1993-04-13 Samsung Electron Devices Co., Ltd. Arc suppressing means for cathode ray tube
FR2789802B1 (en) * 1999-02-11 2001-04-20 Thomson Tubes & Displays ELECTRODE STRUCTURE FOR ELECTRON CANON
US9076625B2 (en) * 2011-04-08 2015-07-07 Varian Semiconductor Equipment Associates, Inc. Indirectly heated cathode cartridge design

Also Published As

Publication number Publication date
BE426509A (en)
US2195914A (en) 1940-04-02
FR834085A (en) 1938-11-10

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