ES483800A1 - Perfeccionamientos introducidos en un tubo de imagen de co- lor del tipo de mascara perforada. - Google Patents

Perfeccionamientos introducidos en un tubo de imagen de co- lor del tipo de mascara perforada.

Info

Publication number
ES483800A1
ES483800A1 ES483800A ES483800A ES483800A1 ES 483800 A1 ES483800 A1 ES 483800A1 ES 483800 A ES483800 A ES 483800A ES 483800 A ES483800 A ES 483800A ES 483800 A1 ES483800 A1 ES 483800A1
Authority
ES
Spain
Prior art keywords
mask
aperture
screen
spacing
angle
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
ES483800A
Other languages
English (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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of ES483800A1 publication Critical patent/ES483800A1/es
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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/07—Shadow masks
    • H01J2229/0727—Aperture plate
    • H01J2229/0788—Parameterised dimensions of aperture plate, e.g. relationships, polynomial expressions

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

Perfeccionamientos introducidos en un tubo de imagen de color del tipo de máscara perforada, que tiene una placa frontal, una pantalla catódicoluminiscente en dicha placa frontal, una máscara perforada ondulada junto a dicha pantalla, y unos medios de cañones electrónicos para producir una pluralidad de haces de electrones y dirigir dichos haces a través de dicha máscara hasta hacerlos incidir en dicha pantalla, siendo las ondulaciones de la máscara substancialmente paralelas y extendiéndose en una primera dirección, con el perfil de onda de las mismas extendiéndose en una segunda dirección, e incluyendo dicha máscara una variación de la separación de perforación a perforación y/o una variación de la anchura de perforación en dicha segunda dirección, en función cada una de la distancia de separación entre la máscara y la pantalla; caracterizado dicho tubo por el hecho de que dicha máscara incluye además una variación de la separación "a" de perforación a perforación y/o una variación de laanchura "w" de perforación, que aumentan cada una al disminuir el ángulo de incidencia del haz electrónico respecto a dicha máscara, y disminuyen al aumentar el ángulo de incidencia del haz electrónico respecto a dicha máscara.
ES483800A 1978-09-08 1979-08-31 Perfeccionamientos introducidos en un tubo de imagen de co- lor del tipo de mascara perforada. Expired ES483800A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/940,577 US4195248A (en) 1978-09-08 1978-09-08 Color picture tube having improved corrugated mask

Publications (1)

Publication Number Publication Date
ES483800A1 true ES483800A1 (es) 1980-04-01

Family

ID=25475082

Family Applications (1)

Application Number Title Priority Date Filing Date
ES483800A Expired ES483800A1 (es) 1978-09-08 1979-08-31 Perfeccionamientos introducidos en un tubo de imagen de co- lor del tipo de mascara perforada.

Country Status (13)

Country Link
US (1) US4195248A (es)
JP (1) JPS5539191A (es)
AT (1) AT375212B (es)
CA (1) CA1125349A (es)
DD (1) DD145820A5 (es)
DE (1) DE2936231A1 (es)
ES (1) ES483800A1 (es)
FI (1) FI792715A (es)
FR (1) FR2435807A1 (es)
GB (1) GB2030357B (es)
IT (1) IT1122828B (es)
NL (1) NL7906723A (es)
PL (1) PL133033B1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293791A (en) * 1979-11-15 1981-10-06 Rca Corporation Color picture tube having improved corrugated apertured mask
JP2774712B2 (ja) * 1991-09-19 1998-07-09 三菱電機株式会社 カラー受像管用シャドウマスクおよびその製造方法
US5689149A (en) * 1995-11-14 1997-11-18 Thomson Consumer Electronics, Inc. Color picture tube having shadow mask with improved aperture shapes
KR100303542B1 (ko) * 1999-02-10 2001-09-26 김순택 음극선관용 섀도우 마스크

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794873A (en) * 1972-11-06 1974-02-26 Zenith Radio Corp Interchangeable shadow mask
US4136300A (en) * 1975-03-19 1979-01-23 Rca Corporation Cathode ray tube having improved shadow mask
US4162421A (en) * 1975-03-19 1979-07-24 Rca Corporation Cathode ray tube having corrugated shadow mask with slits
US4072876A (en) * 1976-10-04 1978-02-07 Rca Corporation Corrugated shadow mask assembly for a cathode ray tube
US4146816A (en) * 1977-07-08 1979-03-27 Rca Corporation Cathode-ray tube with a corrugated mask having a corrugated hinging skirt
US4122368A (en) * 1977-07-08 1978-10-24 Rca Corporation Cathode ray tube with a corrugated mask having a corrugated skirt

Also Published As

Publication number Publication date
PL218153A1 (es) 1980-07-28
FR2435807B1 (es) 1983-07-18
DD145820A5 (de) 1981-01-07
US4195248A (en) 1980-03-25
FR2435807A1 (fr) 1980-04-04
GB2030357B (en) 1982-12-08
ATA583479A (de) 1983-11-15
AT375212B (de) 1984-07-10
IT1122828B (it) 1986-04-23
JPS5539191A (en) 1980-03-18
FI792715A (fi) 1980-03-09
GB2030357A (en) 1980-04-02
DE2936231A1 (de) 1980-03-13
IT7925292A0 (it) 1979-08-27
CA1125349A (en) 1982-06-08
NL7906723A (nl) 1980-03-11
PL133033B1 (en) 1985-05-31
JPS5747541B2 (es) 1982-10-09

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