JPS55131951A - Television picture projector - Google Patents

Television picture projector

Info

Publication number
JPS55131951A
JPS55131951A JP3877579A JP3877579A JPS55131951A JP S55131951 A JPS55131951 A JP S55131951A JP 3877579 A JP3877579 A JP 3877579A JP 3877579 A JP3877579 A JP 3877579A JP S55131951 A JPS55131951 A JP S55131951A
Authority
JP
Japan
Prior art keywords
screen
stripe
television picture
pitches
stripe pitches
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
JP3877579A
Other languages
Japanese (ja)
Inventor
Toshinobu Inoue
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 Electronics 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 Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Priority to JP3877579A priority Critical patent/JPS55131951A/en
Publication of JPS55131951A publication Critical patent/JPS55131951A/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

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

PURPOSE:To raise luminance as well as obtain clear picture by forming a striped fluorescent screen on the inner surface of a trapezoidal face panel and also by using a Braun tube in which stripe pitches are changed vertically. CONSTITUTION:The Braun tube 13 has the trapezoidal face panel 13A the inner surface of which is throughly coated with a fluorescent substance in a striped pattern such that the stripe pitches are changed vertically; that is, the stripe pitches become narrower gradually from the upper position toward the lower position. Thus, the stripe pitches at the upper part of the projection screen have been rendered identical to those at the lower part of said screen, the shadow of television picture can be minimized, and the luminance of the projector can be raised.
JP3877579A 1979-03-30 1979-03-30 Television picture projector Pending JPS55131951A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3877579A JPS55131951A (en) 1979-03-30 1979-03-30 Television picture projector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3877579A JPS55131951A (en) 1979-03-30 1979-03-30 Television picture projector

Publications (1)

Publication Number Publication Date
JPS55131951A true JPS55131951A (en) 1980-10-14

Family

ID=12534659

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3877579A Pending JPS55131951A (en) 1979-03-30 1979-03-30 Television picture projector

Country Status (1)

Country Link
JP (1) JPS55131951A (en)

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