GB2092368A - Cathode ray tube for a light source - Google Patents

Cathode ray tube for a light source

Info

Publication number
GB2092368A
GB2092368A GB8202021A GB8202021A GB2092368A GB 2092368 A GB2092368 A GB 2092368A GB 8202021 A GB8202021 A GB 8202021A GB 8202021 A GB8202021 A GB 8202021A GB 2092368 A GB2092368 A GB 2092368A
Authority
GB
United Kingdom
Prior art keywords
light source
ray tube
cathode ray
face plate
fluorescent screen
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
GB8202021A
Other versions
GB2092368B (en
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
Priority claimed from JP55072383A external-priority patent/JPS601733B2/en
Priority claimed from JP7706480A external-priority patent/JPS601734B2/en
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of GB2092368A publication Critical patent/GB2092368A/en
Application granted granted Critical
Publication of GB2092368B publication Critical patent/GB2092368B/en
Expired 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J63/00—Cathode-ray or electron-stream lamps
    • H01J63/06—Lamps with luminescent screen excited by the ray or stream

Landscapes

  • Luminescent Compositions (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

A cathode ray tube for a light source includes a fluorescent screen (2) which emits a light of a single color such as red, green, blue, etc. formed on the inner surface of a face plate (3) located at one end of a vacuum envelope (1), and an electron gun (4) mounted at the other end of the vacuum envelope (1) opposite to the fluorescent screen (2). The face plate (3) is composed of a glass containing rare earth oxides Nd<u2>uO<u3>u and Pr<u2>uO<u3>u, thus, it is possible to obtain good color tone and contrast under the sun in the day time.
GB8202021A 1980-05-29 1981-05-29 Cathode ray tube for a light source Expired GB2092368B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP55072383A JPS601733B2 (en) 1980-05-29 1980-05-29 Cathode ray tube for light source
JP7706480A JPS601734B2 (en) 1980-06-05 1980-06-05 display device

Publications (2)

Publication Number Publication Date
GB2092368A true GB2092368A (en) 1982-08-11
GB2092368B GB2092368B (en) 1984-05-23

Family

ID=26413518

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8202021A Expired GB2092368B (en) 1980-05-29 1981-05-29 Cathode ray tube for a light source

Country Status (3)

Country Link
DE (1) DE3152042A1 (en)
GB (1) GB2092368B (en)
WO (1) WO1981003581A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4307614C2 (en) * 1993-03-08 1999-10-14 Bernhard Gerth Color information display system with electron beam display tube

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB388560A (en) * 1931-02-11 1933-03-02 Ulrich Wolfgang Doering Improvements in or relating to light generating vacuum tubes
US2923846A (en) * 1956-12-03 1960-02-02 Philco Corp Electrical systems
NL111221C (en) * 1959-01-02
US3323889A (en) * 1963-04-16 1967-06-06 Owens Illinois Inc Method for increasing scratch resistance of a glass surface with a pyrolyzing treatment and a coating of an olefin polymer
US3527711A (en) * 1963-04-16 1970-09-08 Owens Illinois Inc Process for preparing rare earth doped luminescent silica glass
FI41309C (en) * 1968-06-17 1969-10-10 Airam Ab Oy Lamp with an electric discharge tube with a selectively absorbing outer shell
JPS5840815B2 (en) * 1975-09-30 1983-09-08 三菱電機株式会社 cathode ray tube
US4336480A (en) * 1979-03-24 1982-06-22 Mitsubishi Denki Kabushiki Kaisha Cathode ray tube

Also Published As

Publication number Publication date
DE3152042C2 (en) 1989-01-05
GB2092368B (en) 1984-05-23
DE3152042A1 (en) 1982-07-29
WO1981003581A1 (en) 1981-12-10

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19950519

PE20 Patent expired after termination of 20 years

Effective date: 20010528