JPS5479558A - Color picture of index system - Google Patents

Color picture of index system

Info

Publication number
JPS5479558A
JPS5479558A JP14655177A JP14655177A JPS5479558A JP S5479558 A JPS5479558 A JP S5479558A JP 14655177 A JP14655177 A JP 14655177A JP 14655177 A JP14655177 A JP 14655177A JP S5479558 A JPS5479558 A JP S5479558A
Authority
JP
Japan
Prior art keywords
color
stripes
width
index
electron beam
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
JP14655177A
Other languages
Japanese (ja)
Inventor
Shigeo Takenaka
Eizaburo Hamano
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14655177A priority Critical patent/JPS5479558A/en
Publication of JPS5479558A publication Critical patent/JPS5479558A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2231/00—Cathode ray tubes or electron beam tubes
    • H01J2231/12—CRTs having luminescent screens
    • H01J2231/121—Means for indicating the position of the beam, e.g. beam indexing

Landscapes

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

Abstract

PURPOSE: To fulfill color reproduction and color synchronization perfectly by making the 5% width of a scanning electron beam equal to or less than the pitch of index stripes at least when an in-use current is at its maximum.
CONSTITUTION: The color picture tube of the index system has fluorescent screen 1 formed of alternate three-color fluorescent substance stripes and black-color stripes, aluminum reflective film 2 on it, and index stripes 3 on film 2. Then, the 50% width of an electron beam should be made less than approximate one- third the fluorescent-substance trio pitch, and the bottom width of scanning electron beam waveform 7, especially the 5% width by equal to or less than index stripe pitch 6, so that color reproduction and color synchronization both can be made accurate and stable.
COPYRIGHT: (C)1979,JPO&Japio
JP14655177A 1977-12-08 1977-12-08 Color picture of index system Pending JPS5479558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14655177A JPS5479558A (en) 1977-12-08 1977-12-08 Color picture of index system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14655177A JPS5479558A (en) 1977-12-08 1977-12-08 Color picture of index system

Publications (1)

Publication Number Publication Date
JPS5479558A true JPS5479558A (en) 1979-06-25

Family

ID=15410210

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14655177A Pending JPS5479558A (en) 1977-12-08 1977-12-08 Color picture of index system

Country Status (1)

Country Link
JP (1) JPS5479558A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52104051A (en) * 1976-02-27 1977-09-01 Sony Corp Signal feedback type color cathode ray tube

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52104051A (en) * 1976-02-27 1977-09-01 Sony Corp Signal feedback type color cathode ray tube

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