CA1024580A - Shadow mask construction - Google Patents

Shadow mask construction

Info

Publication number
CA1024580A
CA1024580A CA214,619A CA214619A CA1024580A CA 1024580 A CA1024580 A CA 1024580A CA 214619 A CA214619 A CA 214619A CA 1024580 A CA1024580 A CA 1024580A
Authority
CA
Canada
Prior art keywords
shadow mask
mask construction
construction
shadow
mask
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
CA214,619A
Other languages
French (fr)
Other versions
CA214619S (en
Inventor
Silas A. Brown
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
Application granted granted Critical
Publication of CA1024580A publication Critical patent/CA1024580A/en
Expired 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
    • 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
CA214,619A 1974-09-20 1974-11-26 Shadow mask construction Expired CA1024580A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US507689A US3916243A (en) 1974-09-20 1974-09-20 Channeled shadow mask

Publications (1)

Publication Number Publication Date
CA1024580A true CA1024580A (en) 1978-01-17

Family

ID=24019722

Family Applications (1)

Application Number Title Priority Date Filing Date
CA214,619A Expired CA1024580A (en) 1974-09-20 1974-11-26 Shadow mask construction

Country Status (9)

Country Link
US (1) US3916243A (en)
JP (1) JPS5143072A (en)
BE (1) BE823071A (en)
CA (1) CA1024580A (en)
DE (1) DE2459004A1 (en)
FR (1) FR2285709A1 (en)
GB (1) GB1481717A (en)
IT (1) IT1031795B (en)
NL (1) NL7415706A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4048536A (en) * 1976-03-18 1977-09-13 Buckbee-Mears Company Shadow mask with plurality of recessed regions extending across mask in two directions
US4131822A (en) * 1977-05-20 1978-12-26 Rca Corporation Cathode ray tube with stress-relieved slot-aperture shadow mask
US4293792A (en) * 1979-12-18 1981-10-06 Rca Corporation Color picture tube having improved slit type shadow mask
US4300069A (en) * 1979-12-18 1981-11-10 Rca Corporation Color picture tube having improved slit type shadow mask and method of making same
US4389592A (en) * 1980-05-12 1983-06-21 Buckbee-Mears Company Color picture tube and aperture mask therefor
JPS577041A (en) * 1980-05-12 1982-01-14 Buckbee Mears Co Structure with visual sense opening line and method of manufacturing same
CA1175876A (en) * 1980-05-12 1984-10-09 Roland Thoms Television picture tubes and hole technology
US4727280A (en) * 1984-03-30 1988-02-23 Mitsubishi Denki Kabushiki Kaisha Shadow mask for color cathode ray tube shaped to minimize doming
JPS60240028A (en) * 1984-05-10 1985-11-28 Mitsubishi Electric Corp Shadow mask
US4632726A (en) * 1984-07-13 1986-12-30 Bmc Industries, Inc. Multi-graded aperture mask method
FR2576452A1 (en) * 1985-01-22 1986-07-25 Rca Corp Colour picture tube with improved shadowmask
JPS622434A (en) * 1985-06-27 1987-01-08 Sony Corp Method for producing color selection device for cathode-ray tube
US5382870A (en) * 1992-09-21 1995-01-17 Bmc Industries, Inc. Stackable aperture masks
EP0841679B1 (en) * 1996-11-11 2003-02-12 Kabushiki Kaisha Toshiba Shadow mask and method of manufacturing the same
KR20020018278A (en) * 2000-09-01 2002-03-08 김순택 Shadow-mask for color picture tube and method of manufacturing the same and exposure mask for making the shadow-mask

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753663A (en) * 1969-08-15 1973-08-21 Zenith Radio Corp Blank for shadow mask for color television picture tube
US3653900A (en) * 1969-08-15 1972-04-04 Zenith Radio Corp Selective etching process for changing shadow-mask aperture size
US3923566A (en) * 1972-06-21 1975-12-02 Rca Corp Method of fabricating an apertured mask for a cathode-ray tube

Also Published As

Publication number Publication date
FR2285709A1 (en) 1976-04-16
FR2285709B1 (en) 1979-09-28
NL7415706A (en) 1976-03-23
BE823071A (en) 1975-04-01
DE2459004A1 (en) 1976-04-01
JPS5143072A (en) 1976-04-13
US3916243A (en) 1975-10-28
GB1481717A (en) 1977-08-03
IT1031795B (en) 1979-05-10

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