ES451327A1 - Cathode ray tube having shadow mask - Google Patents

Cathode ray tube having shadow mask

Info

Publication number
ES451327A1
ES451327A1 ES451327A ES451327A ES451327A1 ES 451327 A1 ES451327 A1 ES 451327A1 ES 451327 A ES451327 A ES 451327A ES 451327 A ES451327 A ES 451327A ES 451327 A1 ES451327 A1 ES 451327A1
Authority
ES
Spain
Prior art keywords
mask
spacing
dimensions
cathode ray
ray tube
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
ES451327A
Other languages
Spanish (es)
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 ES451327A1 publication Critical patent/ES451327A1/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
    • 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
    • H01J29/006—Arrangements for eliminating unwanted temperature effects
    • 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

A method of manufacturing a shadow mask cathode ray tube to reduce the effect of mismatching by bulging versus that presented by a tube having constant "a" dimensions across the face of the mask and constructed approximately according to the formula (see formula), where "q" is the spacing from mask to screen, "L" is the spacing from the plane of deviation to the screen, "a" is the spacing between centers of mask openings, and "S" is the scattering between an electron beam path and the axis of the central tube in the deflection plane of an electron beam, characterized by: providing variable "a" dimensions, which vary from the center to the edge of said mask, and provide a corresponding adjustment of the dimensions "q" so that said relation of (see formula) is maintained. (Machine-translation by Google Translate, not legally binding)
ES451327A 1975-03-19 1976-09-08 Cathode ray tube having shadow mask Expired ES451327A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55977875A 1975-03-19 1975-03-19

Publications (1)

Publication Number Publication Date
ES451327A1 true ES451327A1 (en) 1977-11-01

Family

ID=24234985

Family Applications (2)

Application Number Title Priority Date Filing Date
ES446016A Expired ES446016A1 (en) 1975-03-19 1976-03-12 Cathode ray tube having shadow mask
ES451327A Expired ES451327A1 (en) 1975-03-19 1976-09-08 Cathode ray tube having shadow mask

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES446016A Expired ES446016A1 (en) 1975-03-19 1976-03-12 Cathode ray tube having shadow mask

Country Status (16)

Country Link
JP (2) JPS51118956A (en)
AT (1) AT343729B (en)
AU (1) AU504894B2 (en)
BE (1) BE839689A (en)
BR (1) BR7601575A (en)
CA (1) CA1070747A (en)
DE (1) DE2611335C2 (en)
ES (2) ES446016A1 (en)
FR (2) FR2305017A1 (en)
GB (1) GB1546889A (en)
IT (1) IT1058438B (en)
MX (1) MX3370E (en)
NL (1) NL188313C (en)
PL (1) PL113474B1 (en)
SU (1) SU1391510A3 (en)
ZA (1) ZA761539B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1584180A (en) * 1976-10-04 1981-02-11 Rca Corp Shadow mask assembly for a cathode ray tube
DE2656995C2 (en) * 1976-12-16 1983-12-01 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Rectangular color selection mask for a color cathode ray tube
US4280077A (en) * 1978-05-11 1981-07-21 Rca Corporation Cathode-ray tube having corrugated shadow mask with varying waveform
IT1122466B (en) * 1978-09-05 1986-04-23 Rca Corp CATHODE TUBE PRESENTING A WAVY MASK WITH A GREATER SPACING BETWEEN MASK AND SCREEN
JPS58152349A (en) * 1982-03-04 1983-09-09 Mitsubishi Electric Corp Slot mask for color cathode-ray tube
US4839556A (en) * 1983-02-25 1989-06-13 Rca Licensing Corporation Cathode-ray tube having an improved shadow mask contour
JPS59165338A (en) * 1983-03-10 1984-09-18 Toshiba Corp Color picture tube
US4583022A (en) * 1984-05-31 1986-04-15 Rca Corporation Color picture tube having shadow mask with specific curvature and column aperture spacing
IN165336B (en) * 1985-03-14 1989-09-23 Rca Corp
JPH083978B2 (en) * 1987-03-10 1996-01-17 三菱電機株式会社 Shead mask type color CRT
JPH083977B2 (en) * 1987-03-03 1996-01-17 三菱電機株式会社 Shead mask type color CRT
JP2993437B2 (en) 1996-08-23 1999-12-20 ソニー株式会社 Glass bulb for color picture tube and color picture tube
JPH11233038A (en) 1998-02-13 1999-08-27 Toshiba Corp Color picture tube
JP2006049145A (en) 2004-08-05 2006-02-16 Matsushita Toshiba Picture Display Co Ltd Color picture tube
US7242137B2 (en) 2004-09-30 2007-07-10 Matsushita Toshiba Picture Display Co., Ltd. Cathode ray tube with cone having non-circular cross-section

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2745978A (en) * 1954-08-23 1956-05-15 Rca Corp Cathode ray tube
NL217309A (en) * 1956-05-16
US2937297A (en) * 1957-08-05 1960-05-17 Sylvania Electric Prod Image display device
US3109117A (en) 1961-05-22 1963-10-29 Rauland Corp Color reproducing cathode-ray tube
US3330980A (en) * 1965-07-16 1967-07-11 Rca Corp Shadow mask mounted with bi-metallic sections connected by expansible loop
GB1165766A (en) * 1967-06-06 1969-10-01 Thorn Aei Radio And Tubes Ltd Improvements in Cathode Ray Tubes for Colour Television
JPS4826175B1 (en) 1969-02-17 1973-08-07
FR2088918A5 (en) * 1970-04-29 1972-01-07 France Couleur
JPS5713985B2 (en) * 1971-08-27 1982-03-20
JPS4874783A (en) * 1971-12-30 1973-10-08
JPS4965779A (en) 1972-10-27 1974-06-26
US3766419A (en) * 1972-11-10 1973-10-16 Rca Corp Cathode-ray tube with shadow mask having random web distribution
GB1584180A (en) * 1976-10-04 1981-02-11 Rca Corp Shadow mask assembly for a cathode ray tube

Also Published As

Publication number Publication date
DE2611335C2 (en) 1983-06-23
ZA761539B (en) 1977-03-30
MX3370E (en) 1980-10-15
DE2611335A1 (en) 1976-09-23
FR2305017A1 (en) 1976-10-15
ES446016A1 (en) 1977-06-01
AU504894B2 (en) 1979-11-01
FR2401513B1 (en) 1985-10-04
FR2305017B1 (en) 1981-11-20
BR7601575A (en) 1976-09-14
CA1070747A (en) 1980-01-29
GB1546889A (en) 1979-05-31
JPS5947420B2 (en) 1984-11-19
BE839689A (en) 1976-07-16
FR2401513A1 (en) 1979-03-23
SU1391510A3 (en) 1988-04-23
ATA204976A (en) 1977-10-15
NL188313B (en) 1991-12-16
NL7602848A (en) 1976-09-21
NL188313C (en) 1992-05-18
JPS51118956A (en) 1976-10-19
IT1058438B (en) 1982-04-10
AT343729B (en) 1978-06-12
JPS5893146A (en) 1983-06-02
PL113474B1 (en) 1980-12-31
AU1203176A (en) 1977-09-22

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19850710