JPS5257777A - Square shadow mask for color picture tube - Google Patents

Square shadow mask for color picture tube

Info

Publication number
JPS5257777A
JPS5257777A JP13382875A JP13382875A JPS5257777A JP S5257777 A JPS5257777 A JP S5257777A JP 13382875 A JP13382875 A JP 13382875A JP 13382875 A JP13382875 A JP 13382875A JP S5257777 A JPS5257777 A JP S5257777A
Authority
JP
Japan
Prior art keywords
shadow mask
picture tube
color picture
square shadow
square
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
JP13382875A
Other languages
Japanese (ja)
Other versions
JPS5531579B2 (en
Inventor
Yasuhiko Yamaguchi
Toshimichi Ohara
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 JP13382875A priority Critical patent/JPS5257777A/en
Publication of JPS5257777A publication Critical patent/JPS5257777A/en
Publication of JPS5531579B2 publication Critical patent/JPS5531579B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

PURPOSE: The non-pierced concave groove section is formed at the outer circumference area of holed region of an orderly arrangement. In this way, a square shadow mask containing uniform hole diameter becomes available for color picture tube.
COPYRIGHT: (C)1977,JPO&Japio
JP13382875A 1975-11-06 1975-11-06 Square shadow mask for color picture tube Granted JPS5257777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13382875A JPS5257777A (en) 1975-11-06 1975-11-06 Square shadow mask for color picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13382875A JPS5257777A (en) 1975-11-06 1975-11-06 Square shadow mask for color picture tube

Publications (2)

Publication Number Publication Date
JPS5257777A true JPS5257777A (en) 1977-05-12
JPS5531579B2 JPS5531579B2 (en) 1980-08-19

Family

ID=15113983

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13382875A Granted JPS5257777A (en) 1975-11-06 1975-11-06 Square shadow mask for color picture tube

Country Status (1)

Country Link
JP (1) JPS5257777A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5982605U (en) * 1982-11-29 1984-06-04 トヨタ自動車株式会社 Chamfering equipment
JPS59183302U (en) * 1983-05-16 1984-12-06 株式会社　大曾根製作所 Chamfering tool

Also Published As

Publication number Publication date
JPS5531579B2 (en) 1980-08-19

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