JPS56126237A - Image pickup tube - Google Patents

Image pickup tube

Info

Publication number
JPS56126237A
JPS56126237A JP2815180A JP2815180A JPS56126237A JP S56126237 A JPS56126237 A JP S56126237A JP 2815180 A JP2815180 A JP 2815180A JP 2815180 A JP2815180 A JP 2815180A JP S56126237 A JPS56126237 A JP S56126237A
Authority
JP
Japan
Prior art keywords
photoconductive layer
signal electrode
effective scanning
rectangular
definite
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.)
Pending
Application number
JP2815180A
Other languages
Japanese (ja)
Inventor
Ikumitsu Nonaka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2815180A priority Critical patent/JPS56126237A/en
Publication of JPS56126237A publication Critical patent/JPS56126237A/en
Pending 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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/36—Photoelectric screens; Charge-storage screens
    • H01J29/39—Charge-storage screens
    • H01J29/45—Charge-storage screens exhibiting internal electric effects caused by electromagnetic radiation, e.g. photoconductive screen, photodielectric screen, photovoltaic screen

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

PURPOSE:To increase S/N ratio of the ringing current and to prevent picked up image from lowering, by forming a photoconductive layer in a rectangular shape having an almost same size with an effective scanning zone. CONSTITUTION:A rectangular transparent signal electrode 14 composed of a transparent conductive film, which is a little larger than a photoconductive layer 13, is made with the photoconductive layer 13 having a rectangular shape which is a little larger than a definite effective scanning zone of electron beam. A transparent signal electrode 14 is provided on the upper surface of a substrate 5. A rectangular photoconductive layer 13 having a definite size is formed on the transparent signal electrode 14. In this case, the definite effective scanning zone of electron beam has almost the same size with the photoconductive layer 13. Thereby floating capacity between the nonscanned zone on the photoconductive layer and In metal ring 12 can be greatly reduced and image-picking up signal with a high S/N ratio can be obtained.
JP2815180A 1980-03-07 1980-03-07 Image pickup tube Pending JPS56126237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2815180A JPS56126237A (en) 1980-03-07 1980-03-07 Image pickup tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2815180A JPS56126237A (en) 1980-03-07 1980-03-07 Image pickup tube

Publications (1)

Publication Number Publication Date
JPS56126237A true JPS56126237A (en) 1981-10-03

Family

ID=12240753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2815180A Pending JPS56126237A (en) 1980-03-07 1980-03-07 Image pickup tube

Country Status (1)

Country Link
JP (1) JPS56126237A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0381189A2 (en) * 1989-02-03 1990-08-08 Hitachi, Ltd. Image pick-up tube

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4718650U (en) * 1971-04-02 1972-11-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4718650U (en) * 1971-04-02 1972-11-01

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0381189A2 (en) * 1989-02-03 1990-08-08 Hitachi, Ltd. Image pick-up tube
US5218264A (en) * 1989-02-03 1993-06-08 Hitachi, Ltd. Image pick-up tube and apparatus having the same

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