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JPS5671255A - Electronic source - Google Patents

Electronic source

Info

Publication number
JPS5671255A
JPS5671255A JP14730879A JP14730879A JPS5671255A JP S5671255 A JPS5671255 A JP S5671255A JP 14730879 A JP14730879 A JP 14730879A JP 14730879 A JP14730879 A JP 14730879A JP S5671255 A JPS5671255 A JP S5671255A
Authority
JP
Japan
Prior art keywords
heat
electronic
cathodes
electrodes
heat cathodes
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
JP14730879A
Other languages
Japanese (ja)
Other versions
JPS6337938B2 (en
Inventor
Masanori Watanabe
Kinzo Nonomura
Yoshinobu Takesako
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14730879A priority Critical patent/JPS5671255A/en
Publication of JPS5671255A publication Critical patent/JPS5671255A/en
Publication of JPS6337938B2 publication Critical patent/JPS6337938B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
    • H01J31/123—Flat display tubes
    • H01J31/125—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection
    • H01J31/126—Flat display tubes provided with control means permitting the electron beam to reach selected parts of the screen, e.g. digital selection using line sources

Landscapes

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

Abstract

PURPOSE:To facilitate controls and to simultaneously obtain plural focused electronic beams by arranging the first and second latticed electrode plates having perforated hole lines opposite to plural pieces of linear heat cathodes ahead of the heat cathodes, and by arranging plural pieces of electronic emitting limited electrodes which are orthogonally crossed with the heat cathodes behind the heat cathodes. CONSTITUTION:Linear heat cathodes 3 composed of metal wire with high fusing point, such as W wire on the surface of which a heat electronic emitting material 4 are plurally strung over almost orthogonally crossing electronic beam control electrodes 2. The heat cathodes 3 and control electrodes 2 are held with a settled interval, and respective pitches are determined in proportion to the necessary density of electronic beams. Besides, for drawing out the electronic beams in the focused condition, the first and second latticed electrode plates 5, 7 on which the perforated hole lines 6, 8 are provided along the longitudinal direction of the heat cathodes 3. In addition, the hole diameter of the perforated holes 6, 8 have the hole shapes which are provided on the first electrode 5 are made larger than the hole diameter which is provided on the second electrodes 7. This facilitates to control and to simultaneously plural pieces of focused electronic beams.
JP14730879A 1979-11-13 1979-11-13 Electronic source Granted JPS5671255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14730879A JPS5671255A (en) 1979-11-13 1979-11-13 Electronic source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14730879A JPS5671255A (en) 1979-11-13 1979-11-13 Electronic source

Publications (2)

Publication Number Publication Date
JPS5671255A true JPS5671255A (en) 1981-06-13
JPS6337938B2 JPS6337938B2 (en) 1988-07-27

Family

ID=15427249

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14730879A Granted JPS5671255A (en) 1979-11-13 1979-11-13 Electronic source

Country Status (1)

Country Link
JP (1) JPS5671255A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6210847A (en) * 1985-07-08 1987-01-19 Ise Electronics Corp Display tube for light source
US4973889A (en) * 1989-02-01 1990-11-27 Matsushita Electric Industrial Co., Ltd. Flat configuration cathode ray tube
US5140230A (en) * 1989-02-01 1992-08-18 Matsushita Electric Industrial Co., Ltd. Flat configuration cathode ray tube
EP0630037A1 (en) * 1992-11-06 1994-12-21 Mitsubishi Denki Kabushiki Kaisha Image display
KR20200002823A (en) 2017-04-25 2020-01-08 닛뽄 세이꼬 가부시기가이샤 Rotation Angle Detection Device and Rotation Angle Detection Method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6210847A (en) * 1985-07-08 1987-01-19 Ise Electronics Corp Display tube for light source
US4973889A (en) * 1989-02-01 1990-11-27 Matsushita Electric Industrial Co., Ltd. Flat configuration cathode ray tube
US5140230A (en) * 1989-02-01 1992-08-18 Matsushita Electric Industrial Co., Ltd. Flat configuration cathode ray tube
EP0630037A1 (en) * 1992-11-06 1994-12-21 Mitsubishi Denki Kabushiki Kaisha Image display
EP0630037A4 (en) * 1992-11-06 1995-04-12 Mitsubishi Electric Corp Image display.
US5604394A (en) * 1992-11-06 1997-02-18 Mitsubishi Denki Kabushiki Kaisha Image display apparatus
KR20200002823A (en) 2017-04-25 2020-01-08 닛뽄 세이꼬 가부시기가이샤 Rotation Angle Detection Device and Rotation Angle Detection Method

Also Published As

Publication number Publication date
JPS6337938B2 (en) 1988-07-27

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