[go: up one dir, main page]

GB564546A - Improvements in or relating to cathode ray tubes - Google Patents

Improvements in or relating to cathode ray tubes

Info

Publication number
GB564546A
GB564546A GB15392/42A GB1539242A GB564546A GB 564546 A GB564546 A GB 564546A GB 15392/42 A GB15392/42 A GB 15392/42A GB 1539242 A GB1539242 A GB 1539242A GB 564546 A GB564546 A GB 564546A
Authority
GB
United Kingdom
Prior art keywords
cathode
anode
support
hole
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
GB15392/42A
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.)
Heraeus Noblelight Analytics Ltd
Original Assignee
Cathodeon Ltd
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 Cathodeon Ltd filed Critical Cathodeon Ltd
Priority to GB15392/42A priority Critical patent/GB564546A/en
Priority to US509745A priority patent/US2362908A/en
Publication of GB564546A publication Critical patent/GB564546A/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
    • H01J29/485—Construction of the gun or of parts thereof

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

564,546. Cathode-ray tubes. LIEBMANN, G., and CATHODEON, Ltd. Nov. 2, 1942, No. 15392. [Class 39 (i)] In a cathode-ray tube, a cathode 11 is secured in an aperture 14 in an insulating support 13 so that the electron emissive surface of the cathode is fixed with respect to the support and a narrow metal strip 19 is fixed to the support having a hole in line with the cathode surface, a modulating electrode 17 being conductively secured to strip 19 to close this hole and having a further hole in its centre in line with the cathode surface. An anode 32 with a central hole 31 is mounted above by claws 34 thereon engaging support 13. The modulating electrode 17 may be concave on the side facing away from its supporting strip and an insulating spacer may be provided between anode 32 and electrode 17. The cathode assembly may be mounted on an insulating disc 46 fitting into the tube 47. A further anode 51 is mounted in a similar disc 56 and spaced by stiff wires 50 through one of which the electrical connections to this anode is made. A further anode 59 is formed by a conductive coating on tube 47. In a modified construction, anode 32 may be seated on bosses on support 13. Specification 528,979 is referred to.
GB15392/42A 1942-11-02 1942-11-02 Improvements in or relating to cathode ray tubes Expired GB564546A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB15392/42A GB564546A (en) 1942-11-02 1942-11-02 Improvements in or relating to cathode ray tubes
US509745A US2362908A (en) 1942-11-02 1943-11-10 Cathode ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15392/42A GB564546A (en) 1942-11-02 1942-11-02 Improvements in or relating to cathode ray tubes

Publications (1)

Publication Number Publication Date
GB564546A true GB564546A (en) 1944-10-03

Family

ID=10058342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15392/42A Expired GB564546A (en) 1942-11-02 1942-11-02 Improvements in or relating to cathode ray tubes

Country Status (2)

Country Link
US (1) US2362908A (en)
GB (1) GB564546A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2464556A1 (en) * 1979-08-29 1981-03-06 Rca Corp MULTI-BEAM ELECTRON CANON FOR CATHODE RAY TUBE
US4414485A (en) 1981-06-23 1983-11-08 Rca Corporation Control-screen electrode subassembly for an electron gun and method for constructing the same
US4504763A (en) * 1981-08-14 1985-03-12 Tokyo Shibaura Denki Kabushiki Kaisha Cathode ray tube provided with a potted base

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2476060A (en) * 1945-01-11 1949-07-12 Cossor Ltd A C Electron gun structure
US2542108A (en) * 1947-10-25 1951-02-20 Emi Ltd Mounting of electrode structures in envelopes
US2551871A (en) * 1949-02-11 1951-05-08 Superior Tube Co Thermionic cathode construction
NL242894A (en) * 1958-09-06
DE3407434A1 (en) * 1984-02-29 1985-08-29 Siemens AG, 1000 Berlin und 8000 München RADIATOR GENERATOR SYSTEM FOR ELECTRONIC TUBES, IN PARTICULAR WALKER TUBES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2464556A1 (en) * 1979-08-29 1981-03-06 Rca Corp MULTI-BEAM ELECTRON CANON FOR CATHODE RAY TUBE
US4414485A (en) 1981-06-23 1983-11-08 Rca Corporation Control-screen electrode subassembly for an electron gun and method for constructing the same
US4504763A (en) * 1981-08-14 1985-03-12 Tokyo Shibaura Denki Kabushiki Kaisha Cathode ray tube provided with a potted base

Also Published As

Publication number Publication date
US2362908A (en) 1944-11-14

Similar Documents

Publication Publication Date Title
GB505632A (en) Improvements in and relating to cathode-ray tubes
GB556046A (en) Improvements relating to electron guns such as are used in cathode ray tubes
GB838078A (en) Thermometer type voltage indicator tube
GB564546A (en) Improvements in or relating to cathode ray tubes
GB548235A (en) Improvements in cathode ray tubes
GB555231A (en) Electron discharge devices
GB1216584A (en) Directly heated cathode
GB499681A (en) Electron discharge devices
GB707064A (en) Improvements relating to electrode assemblies for cathode ray tubes
GB993494A (en) Improvements relating to electron guns
GB716162A (en) Improvements in or relating to cathode-ray tubes
GB675868A (en) Improvements relating to television or like pick-up tubes
GB1534169A (en) Cathode-ray tube with thermally-set getter spring support
GB629881A (en) Improvements in electric discharge tubes comprising secondary emission electrodes
GB519111A (en) Improvements in and relating to cathode ray tubes
US2324776A (en) Vacuum tube
US2540834A (en) Electron discharge device
GB656617A (en) Improvements relating to electron guns for cathode ray tubes
GB563817A (en) Improvements relating to cathode ray oscillographs
GB606147A (en) Improvements in or relating to electron discharge tubes
GB1140694A (en) Apparatus for forming electron beam
GB587014A (en) Improvements in or relating to cathodes for electron discharge devices
GB975398A (en) Voltage indicator tubes
GB781801A (en) Improvements in and relating to electron discharge devices
GB565063A (en) Improvements in or relating to the screening of amplifying valves