JPS55157843A - Black matrix system colour image receiving tube - Google Patents

Black matrix system colour image receiving tube

Info

Publication number
JPS55157843A
JPS55157843A JP6863679A JP6863679A JPS55157843A JP S55157843 A JPS55157843 A JP S55157843A JP 6863679 A JP6863679 A JP 6863679A JP 6863679 A JP6863679 A JP 6863679A JP S55157843 A JPS55157843 A JP S55157843A
Authority
JP
Japan
Prior art keywords
peripheral part
center part
receiving tube
image receiving
phase plate
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
JP6863679A
Other languages
Japanese (ja)
Other versions
JPS6313299B2 (en
Inventor
Yasuo Iwasaki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP6863679A priority Critical patent/JPS55157843A/en
Publication of JPS55157843A publication Critical patent/JPS55157843A/en
Publication of JPS6313299B2 publication Critical patent/JPS6313299B2/ja
Granted 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
    • H01J29/18—Luminescent screens
    • H01J29/28—Luminescent screens with protective, conductive or reflective layers

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

PURPOSE:To reduce the difference of optical outputs between the center part and the peripheral part and improve image contrast by using the phase plate on which thin membrane is formed by evaporation so that light transmissivity increases gradually from the center part to the peripheral part. CONSTITUTION:As for the phase plate of a glass panel which has evaporated thin membrane on the inner surface, the light transmissivity at the center part is set for example at 60%, and it increases gradually toward the peripheral part, and is set for example at 85% at the peripheral part. The opening rate of the black light absorbing layer and the luminescent layer which have openings are set so as to be smaller from the center part of the phase plate to the peripheral part. Accordingly, the light transmissivity at the center part becomes pretty smaller, and image contrast can be improved sharply, and a colour image receiving tube having high quality can be obtained.
JP6863679A 1979-05-29 1979-05-29 Black matrix system colour image receiving tube Granted JPS55157843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6863679A JPS55157843A (en) 1979-05-29 1979-05-29 Black matrix system colour image receiving tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6863679A JPS55157843A (en) 1979-05-29 1979-05-29 Black matrix system colour image receiving tube

Publications (2)

Publication Number Publication Date
JPS55157843A true JPS55157843A (en) 1980-12-08
JPS6313299B2 JPS6313299B2 (en) 1988-03-24

Family

ID=13379412

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6863679A Granted JPS55157843A (en) 1979-05-29 1979-05-29 Black matrix system colour image receiving tube

Country Status (1)

Country Link
JP (1) JPS55157843A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61136460U (en) * 1985-02-14 1986-08-25

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02290298A (en) * 1989-04-28 1990-11-30 Nippon Kentetsu Co Ltd Automatic control method for batch-type active sludge treatment apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61136460U (en) * 1985-02-14 1986-08-25

Also Published As

Publication number Publication date
JPS6313299B2 (en) 1988-03-24

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