FR2285709A1 - MASK WITH ELECTRONIC BEAM PASSAGE HOLES - Google Patents

MASK WITH ELECTRONIC BEAM PASSAGE HOLES

Info

Publication number
FR2285709A1
FR2285709A1 FR7501166A FR7501166A FR2285709A1 FR 2285709 A1 FR2285709 A1 FR 2285709A1 FR 7501166 A FR7501166 A FR 7501166A FR 7501166 A FR7501166 A FR 7501166A FR 2285709 A1 FR2285709 A1 FR 2285709A1
Authority
FR
France
Prior art keywords
mask
passage holes
beam passage
electronic beam
electronic
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
FR7501166A
Other languages
French (fr)
Other versions
FR2285709B1 (en
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 FR2285709A1 publication Critical patent/FR2285709A1/en
Application granted granted Critical
Publication of FR2285709B1 publication Critical patent/FR2285709B1/fr
Granted 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
FR7501166A 1974-09-20 1975-01-15 MASK WITH ELECTRONIC BEAM PASSAGE HOLES Granted FR2285709A1 (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 (2)

Publication Number Publication Date
FR2285709A1 true FR2285709A1 (en) 1976-04-16
FR2285709B1 FR2285709B1 (en) 1979-09-28

Family

ID=24019722

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7501166A Granted FR2285709A1 (en) 1974-09-20 1975-01-15 MASK WITH ELECTRONIC BEAM PASSAGE HOLES

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
CA1175876A (en) * 1980-05-12 1984-10-09 Roland Thoms Television picture tubes and hole technology
JPS577041A (en) * 1980-05-12 1982-01-14 Buckbee Mears Co Structure with visual sense opening line and method of manufacturing same
US4389592A (en) * 1980-05-12 1983-06-21 Buckbee-Mears Company Color picture tube and aperture mask therefor
JPS60240028A (en) * 1984-05-10 1985-11-28 Mitsubishi Electric Corp Shadow mask
US4727280A (en) * 1984-03-30 1988-02-23 Mitsubishi Denki Kabushiki Kaisha Shadow mask for color cathode ray tube shaped to minimize doming
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

Citations (2)

* 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
NL7308567A (en) * 1972-06-21 1973-12-27

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3653900A (en) * 1969-08-15 1972-04-04 Zenith Radio Corp Selective etching process for changing shadow-mask aperture size

Patent Citations (2)

* 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
NL7308567A (en) * 1972-06-21 1973-12-27

Also Published As

Publication number Publication date
NL7415706A (en) 1976-03-23
JPS5143072A (en) 1976-04-13
BE823071A (en) 1975-04-01
US3916243A (en) 1975-10-28
GB1481717A (en) 1977-08-03
CA1024580A (en) 1978-01-17
FR2285709B1 (en) 1979-09-28
IT1031795B (en) 1979-05-10
DE2459004A1 (en) 1976-04-01

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Legal Events

Date Code Title Description
ST Notification of lapse