CA2039822C - Cathode-ray tube having improved 16 x 9 aspect ratio faceplate panel - Google Patents

Cathode-ray tube having improved 16 x 9 aspect ratio faceplate panel Download PDF

Info

Publication number
CA2039822C
CA2039822C CA002039822A CA2039822A CA2039822C CA 2039822 C CA2039822 C CA 2039822C CA 002039822 A CA002039822 A CA 002039822A CA 2039822 A CA2039822 A CA 2039822A CA 2039822 C CA2039822 C CA 2039822C
Authority
CA
Canada
Prior art keywords
curvature
radius
sides
panel
long sides
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 - Lifetime
Application number
CA002039822A
Other languages
English (en)
French (fr)
Other versions
CA2039822A1 (en
Inventor
Alfredo Maresca
Paolo Spina
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.)
Videocolor SpA
Original Assignee
Videocolor SpA
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 Videocolor SpA filed Critical Videocolor SpA
Publication of CA2039822A1 publication Critical patent/CA2039822A1/en
Application granted granted Critical
Publication of CA2039822C publication Critical patent/CA2039822C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H01J29/861—Vessels or containers characterised by the form or the structure thereof
    • 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
    • H01J29/86—Vessels; Containers; Vacuum locks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2229/00—Details of cathode ray tubes or electron beam tubes
    • H01J2229/86—Vessels and containers
    • H01J2229/8613—Faceplates
    • H01J2229/8616—Faceplates characterised by shape
    • H01J2229/862—Parameterised shape, e.g. expression, relationship or equation

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Gas-Filled Discharge Tubes (AREA)
CA002039822A 1990-05-11 1991-04-04 Cathode-ray tube having improved 16 x 9 aspect ratio faceplate panel Expired - Lifetime CA2039822C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT20271A IT1239972B (it) 1990-05-11 1990-05-11 Tubo a raggi catodici avente un pannello a lastra frontale perfezionato, con rapporto larghezza/altezza di 16/9"
IT20271A/90 1990-05-11

Publications (2)

Publication Number Publication Date
CA2039822A1 CA2039822A1 (en) 1991-11-12
CA2039822C true CA2039822C (en) 2001-11-20

Family

ID=11165319

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002039822A Expired - Lifetime CA2039822C (en) 1990-05-11 1991-04-04 Cathode-ray tube having improved 16 x 9 aspect ratio faceplate panel

Country Status (12)

Country Link
JP (1) JP2611885B2 (de)
KR (1) KR940010952B1 (de)
CN (1) CN1018968B (de)
CA (1) CA2039822C (de)
CS (1) CS128391A2 (de)
CZ (1) CZ544U1 (de)
DE (2) DE4114606A1 (de)
FR (1) FR2662021B1 (de)
GB (1) GB2243945B (de)
IT (1) IT1239972B (de)
PL (1) PL164198B1 (de)
TR (1) TR25115A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5319280A (en) * 1991-05-06 1994-06-07 U.S. Philips Corporation Color picture tube with reduced raster distortion and flat appearing display window
US6025676A (en) * 1996-03-06 2000-02-15 Kabushiki Kaisha Toshiba Cathode ray tube having improved curvature characteristics and method of fabrication thereof
US6011350A (en) * 1996-04-25 2000-01-04 Thomson Consumer Electronics, Inc. Color picture tube faceplate panel
KR100301321B1 (ko) 1997-03-14 2001-10-29 니시무로 타이죠 칼라음극선관
EP1079412A3 (de) * 1999-08-21 2002-11-27 Schott Glas Fernsehröhre

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5146913A (ja) * 1974-10-18 1976-04-22 Matsushita Electric Ind Co Ltd Jikikirokusaiseisochi
US4483452A (en) * 1981-12-07 1984-11-20 Corning Glass Works Television bulb
NL8304181A (nl) * 1983-12-06 1985-07-01 Philips Nv Kleurenbeeldbuis.
JPH01155787A (ja) * 1987-12-14 1989-06-19 Hitachi Ltd テレビ信号受像装置
IT1239510B (it) * 1990-03-30 1993-11-03 Videocolor Spa Tubo a raggi catodici avente una lastra frontale perfezionata, con rapporto larghezza/altezza di 16/9"

Also Published As

Publication number Publication date
FR2662021A1 (fr) 1991-11-15
CN1056601A (zh) 1991-11-27
IT1239972B (it) 1993-11-27
KR940010952B1 (ko) 1994-11-19
GB2243945A (en) 1991-11-13
CN1018968B (zh) 1992-11-04
GB9108839D0 (en) 1991-06-12
CZ544U1 (cs) 1993-08-25
PL164198B1 (pl) 1994-06-30
FR2662021B1 (fr) 1993-12-10
JPH04229534A (ja) 1992-08-19
PL290205A1 (en) 1992-01-13
DE9116705U1 (de) 1993-09-02
CS128391A2 (en) 1991-12-17
JP2611885B2 (ja) 1997-05-21
KR910020789A (ko) 1991-12-20
CA2039822A1 (en) 1991-11-12
TR25115A (tr) 1992-11-01
DE4114606A1 (de) 1991-11-21
IT9020271A1 (it) 1991-11-11
GB2243945B (en) 1994-05-11
IT9020271A0 (it) 1990-05-11

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed
MKEC Expiry (correction)

Effective date: 20121202