GB1263648A - Manufacture of shadow masks for colour television picture tubes - Google Patents

Manufacture of shadow masks for colour television picture tubes

Info

Publication number
GB1263648A
GB1263648A GB41430/70A GB4143070A GB1263648A GB 1263648 A GB1263648 A GB 1263648A GB 41430/70 A GB41430/70 A GB 41430/70A GB 4143070 A GB4143070 A GB 4143070A GB 1263648 A GB1263648 A GB 1263648A
Authority
GB
United Kingdom
Prior art keywords
etching
radiation
manufacture
television picture
shadow masks
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.)
Expired
Application number
GB41430/70A
Other languages
English (en)
Inventor
John G Davies
John C Thomas
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.)
Buckbee Mears Co
Original Assignee
Buckbee Mears Co
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 Buckbee Mears Co filed Critical Buckbee Mears Co
Publication of GB1263648A publication Critical patent/GB1263648A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems
    • H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
    • H01J9/142—Manufacture of electrodes or electrode systems of non-emitting electrodes of shadow-masks for colour television tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • ing And Chemical Polishing (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
GB41430/70A 1970-03-02 1970-08-28 Manufacture of shadow masks for colour television picture tubes Expired GB1263648A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1536670A 1970-03-02 1970-03-02

Publications (1)

Publication Number Publication Date
GB1263648A true GB1263648A (en) 1972-02-16

Family

ID=21770984

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41430/70A Expired GB1263648A (en) 1970-03-02 1970-08-28 Manufacture of shadow masks for colour television picture tubes

Country Status (7)

Country Link
US (1) US3645811A (https=)
JP (1) JPS5417265B1 (https=)
BE (1) BE763076A (https=)
DE (1) DE2100025A1 (https=)
FR (1) FR2083796A5 (https=)
GB (1) GB1263648A (https=)
NL (1) NL7015085A (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4050821A (en) * 1976-09-27 1977-09-27 Bell Telephone Laboratories, Incorporated Linewidth measurement method and apparatus
US4239586A (en) * 1979-06-29 1980-12-16 International Business Machines Corporation Etching of multiple holes of uniform size
DE3539874A1 (de) * 1985-11-11 1987-05-14 Hoellmueller Maschbau H Anlage zum aetzen von zumindest teilweise aus metall, vorzugsweise kupfer, bestehendem aetzgut
US5387313A (en) * 1992-11-09 1995-02-07 Bmc Industries, Inc. Etchant control system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1188870A (en) * 1912-11-06 1916-06-27 B E Williamson Etching process.
US2822635A (en) * 1954-10-01 1958-02-11 Norman B Mears Apparatus and method for etching metal webs

Also Published As

Publication number Publication date
US3645811A (en) 1972-02-29
NL7015085A (https=) 1971-09-06
BE763076A (fr) 1971-07-16
DE2100025A1 (de) 1971-09-23
FR2083796A5 (https=) 1971-12-17
JPS5417265B1 (https=) 1979-06-28

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