JPS56134469A - Cathode ray tube - Google Patents

Cathode ray tube

Info

Publication number
JPS56134469A
JPS56134469A JP3845180A JP3845180A JPS56134469A JP S56134469 A JPS56134469 A JP S56134469A JP 3845180 A JP3845180 A JP 3845180A JP 3845180 A JP3845180 A JP 3845180A JP S56134469 A JPS56134469 A JP S56134469A
Authority
JP
Japan
Prior art keywords
fluorescent
luminous
porcelain
europium
red
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
JP3845180A
Other languages
Japanese (ja)
Inventor
Yosuke Fujita
Yoji Fukuda
Koji Nitta
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 JP3845180A priority Critical patent/JPS56134469A/en
Publication of JPS56134469A publication Critical patent/JPS56134469A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J63/00—Cathode-ray or electron-stream lamps
    • H01J63/02—Details, e.g. electrode, gas filling, shape of vessel
    • H01J63/04—Vessels provided with luminescent coatings; Selection of materials for the coatings

Landscapes

  • Luminescent Compositions (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

PURPOSE:To prevent any local temperature rise of a luminous screen which might be caused by electron ray irradiation, and thereby prevent any reduction of the luminous efficacy of a cathoderay tube, by employing as the luminous screen a red-color emitting rare earth fluorescent-body porcelain activated with europium. CONSTITUTION:Fluorescent bodies 2 are fitted in a vacuum case 1 by use the springs 5, before aluminum films 3 and an electron gun 4 are installed in the case 1, thus a cathoderay tube being constituted. As the fluorescent body 2, a red-color emitting rare earth fluorescent-body porcelain activated with europium is employed. When fast electrons are discharged from the electron gun 4 toward the porcelain fluorescent-body 2 in a shower form, the body 2 emits red light having a luminous peak at 613mm..
JP3845180A 1980-03-25 1980-03-25 Cathode ray tube Pending JPS56134469A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3845180A JPS56134469A (en) 1980-03-25 1980-03-25 Cathode ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3845180A JPS56134469A (en) 1980-03-25 1980-03-25 Cathode ray tube

Publications (1)

Publication Number Publication Date
JPS56134469A true JPS56134469A (en) 1981-10-21

Family

ID=12525642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3845180A Pending JPS56134469A (en) 1980-03-25 1980-03-25 Cathode ray tube

Country Status (1)

Country Link
JP (1) JPS56134469A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63254656A (en) * 1987-04-09 1988-10-21 Mitsubishi Electric Corp Cathode-ray tube for display light source

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5324029A (en) * 1976-08-18 1978-03-06 Lilly Industries Ltd Mold killing mixture

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5324029A (en) * 1976-08-18 1978-03-06 Lilly Industries Ltd Mold killing mixture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63254656A (en) * 1987-04-09 1988-10-21 Mitsubishi Electric Corp Cathode-ray tube for display light source

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