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GB907385A - Electron gun structure for cathode ray tubes - Google Patents

Electron gun structure for cathode ray tubes

Info

Publication number
GB907385A
GB907385A GB34366/58A GB3436658A GB907385A GB 907385 A GB907385 A GB 907385A GB 34366/58 A GB34366/58 A GB 34366/58A GB 3436658 A GB3436658 A GB 3436658A GB 907385 A GB907385 A GB 907385A
Authority
GB
United Kingdom
Prior art keywords
cathode
grids
electrode
apertured
electron gun
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
GB34366/58A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB907385A publication Critical patent/GB907385A/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
    • H01J29/488—Schematic arrangements of the electrodes for beam forming; Place and form of the elecrodes

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Electron Sources, Ion Sources (AREA)

Abstract

907,385. Cathode-ray tubes. RADIO CORPORATION OF AMERICA. Oct. 27, 1958 [Oct. 30, 1957], No. 34366/58. Class 39 (1). An electron gun for a cathode-ray tube comprises a cathode 38, an apertured accelerating electrode 26 and, between them, two apertured grids 52, 60, the apertures of the grids being provided with fine-mesh screens 70, 72. The arrangement is such that, in operation, a virtual cathode is formed between the grids and electrons therefrom are focused at a cross-over point between grid 60 and electrode 26. As shown, the cathode is supported in an apertured collimating electrode 48 to which grids 52, 60 are also secured by screws 66 with the interposition of insulating washers 56, 58. Grid 60 is secured to a thicker metallic member 64 so that the field between it and electrode 26 dips into aperture 65 to form a strong converging lens. Preferred dimensions and spacings of the electrodes and apertures are given.
GB34366/58A 1957-10-30 1958-10-27 Electron gun structure for cathode ray tubes Expired GB907385A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US693467A US3032674A (en) 1957-10-30 1957-10-30 Electron gun structure for cathode ray tube

Publications (1)

Publication Number Publication Date
GB907385A true GB907385A (en) 1962-10-03

Family

ID=24784769

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34366/58A Expired GB907385A (en) 1957-10-30 1958-10-27 Electron gun structure for cathode ray tubes

Country Status (5)

Country Link
US (1) US3032674A (en)
BE (1) BE572426A (en)
DE (1) DE1133837B (en)
FR (1) FR1205028A (en)
GB (1) GB907385A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1205565A (en) * 1966-09-28 1970-09-16 Rank Organisation Ltd Improvements in or relating to electron guns
US4298818A (en) * 1979-08-29 1981-11-03 Rca Corporation Electron gun
US4414485A (en) * 1981-06-23 1983-11-08 Rca Corporation Control-screen electrode subassembly for an electron gun and method for constructing the same
NL8302754A (en) * 1983-08-04 1985-03-01 Philips Nv CATHED BEAM TUBE.
DE19630200A1 (en) * 1996-07-26 1998-01-29 Aeg Elektronische Roehren Gmbh cathode ray tube

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE548141C (en) * 1928-10-30 1932-04-07 Apollinar Zeitlin Arrangement for recording electrical pulses and achieving high cathode ray intensities
GB510702A (en) * 1938-01-04 1939-08-04 Frederick Hermes Nicoll Improvements in or relating to electron guns
BE470312A (en) * 1941-10-11
US2318423A (en) * 1941-10-28 1943-05-04 Bell Telephone Labor Inc Electron discharge device
US2426626A (en) * 1942-10-29 1947-09-02 Bell Telephone Labor Inc Electron discharge apparatus
FR906915A (en) * 1943-09-10 1946-02-25 Philips Nv Electric discharge tube intended for very high frequencies
US2441254A (en) * 1945-08-04 1948-05-11 Remco Electronic Inc Symmetrical space charge tube
US2469843A (en) * 1946-11-15 1949-05-10 Bell Telephone Labor Inc Electron transit time tube
US2690517A (en) * 1952-09-30 1954-09-28 Rca Corp Plural beam electron gun
US2852716A (en) * 1954-07-14 1958-09-16 Gen Electric Cathode ray tube and electron gun therefor
US2877369A (en) * 1955-06-02 1959-03-10 Rca Corp Electron beam tube

Also Published As

Publication number Publication date
DE1133837B (en) 1962-07-26
US3032674A (en) 1962-05-01
BE572426A (en)
FR1205028A (en) 1960-01-29

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