BR8102909A - Tubo de televisao colorida, membro e processo para a construcao de uma abertura de linha de mira em um artigo tendo duas superficies - Google Patents

Tubo de televisao colorida, membro e processo para a construcao de uma abertura de linha de mira em um artigo tendo duas superficies

Info

Publication number
BR8102909A
BR8102909A BR8102909A BR8102909A BR8102909A BR 8102909 A BR8102909 A BR 8102909A BR 8102909 A BR8102909 A BR 8102909A BR 8102909 A BR8102909 A BR 8102909A BR 8102909 A BR8102909 A BR 8102909A
Authority
BR
Brazil
Prior art keywords
mira
article
construction
line opening
television tube
Prior art date
Application number
BR8102909A
Other languages
English (en)
Inventor
R Thoms
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
Priority claimed from US06/148,683 external-priority patent/US4353948A/en
Application filed by Buckbee Mears Co filed Critical Buckbee Mears Co
Publication of BR8102909A publication Critical patent/BR8102909A/pt

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
    • 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
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H01J29/07—Shadow masks for colour television tubes
    • H01J29/076—Shadow masks for colour television tubes characterised by the shape or distribution of beam-passing apertures

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • ing And Chemical Polishing (AREA)
BR8102909A 1980-05-12 1981-05-11 Tubo de televisao colorida, membro e processo para a construcao de uma abertura de linha de mira em um artigo tendo duas superficies BR8102909A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14868280A 1980-05-12 1980-05-12
US06/148,683 US4353948A (en) 1980-05-12 1980-05-12 Hole technology

Publications (1)

Publication Number Publication Date
BR8102909A true BR8102909A (pt) 1982-02-02

Family

ID=26846063

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8102909A BR8102909A (pt) 1980-05-12 1981-05-11 Tubo de televisao colorida, membro e processo para a construcao de uma abertura de linha de mira em um artigo tendo duas superficies

Country Status (6)

Country Link
EP (1) EP0039906B1 (pt)
JP (1) JPH0713158Y2 (pt)
AR (1) AR223591A1 (pt)
BR (1) BR8102909A (pt)
CA (1) CA1175876A (pt)
DE (1) DE3175329D1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0715331B1 (en) * 1990-11-22 2001-01-31 Kabushiki Kaisha Toshiba Negative plate used for manufacture of a shadow mask, and method for manufacturing the negative plate

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4881762U (pt) * 1971-12-30 1973-10-05
US3973965A (en) * 1972-05-30 1976-08-10 Tokyo Shibaura Electric Co., Ltd. Making shadow mask with slit-shaped apertures for CRT
US4069085A (en) * 1973-07-16 1978-01-17 U.S. Philips Corporation Apparatus for forming apertures in a thin metal tape such as a shadow mask for a color television display tube
US3916243A (en) * 1974-09-20 1975-10-28 Buckbee Mears Co Channeled shadow mask
JPS5310961A (en) * 1976-07-19 1978-01-31 Hitachi Ltd Color picture tube
GB2020892A (en) * 1978-05-10 1979-11-21 Rca Corp C.R.T. Silt Type Shadow Mask
US4293792A (en) * 1979-12-18 1981-10-06 Rca Corporation Color picture tube having improved slit type shadow mask

Also Published As

Publication number Publication date
AR223591A1 (es) 1981-08-31
JPH069043U (ja) 1994-02-04
CA1175876A (en) 1984-10-09
EP0039906B1 (en) 1986-09-17
EP0039906A2 (en) 1981-11-18
JPH0713158Y2 (ja) 1995-03-29
EP0039906A3 (en) 1982-06-16
DE3175329D1 (en) 1986-10-23

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