ES469770A1 - Perfeccionamientos introducidos en un tubo de rayos catodi- cos para color, con mascara de sombras - Google Patents
Perfeccionamientos introducidos en un tubo de rayos catodi- cos para color, con mascara de sombrasInfo
- Publication number
- ES469770A1 ES469770A1 ES469770A ES469770A ES469770A1 ES 469770 A1 ES469770 A1 ES 469770A1 ES 469770 A ES469770 A ES 469770A ES 469770 A ES469770 A ES 469770A ES 469770 A1 ES469770 A1 ES 469770A1
- Authority
- ES
- Spain
- Prior art keywords
- apertures
- ray tube
- cathode ray
- shadow mask
- aperture
- 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
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
Landscapes
- Electrodes For Cathode-Ray Tubes (AREA)
Abstract
Perfeccionamientos introducidos en un tubo de rayos catódicos para color, con máscara de sombras, que incluye un electrodo perforado que comprende una chapa metálica conformada que tiene en ella un a agrupación ordenada de aberturas alargadas, estando dispuestas dichas aberturas en una pluralidad de filas sustancialmente paralelas, siendo alargadas las aberturas en la dirección de dichas filas y estando espaciada por bandas, y una agrupación ordenada de cavidades superficiales individuales de dicha chapa, estando cada una de dichas cavidades lateralmente espaciada respecto de la línea central de una de dichas filas de aberturas, caracterizados porque cada una de dichas cavidades se encuentra junto a y sustancialmente enfrente de una sola banda de una fila de aberturas dada y se extiende ligeramente dentro de dicha banda entre las dos aberturas adyacentes de dicha fila.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/799,078 US4131822A (en) | 1977-05-20 | 1977-05-20 | Cathode ray tube with stress-relieved slot-aperture shadow mask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES469770A1 true ES469770A1 (es) | 1979-01-01 |
Family
ID=25174991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES469770A Expired ES469770A1 (es) | 1977-05-20 | 1978-05-12 | Perfeccionamientos introducidos en un tubo de rayos catodi- cos para color, con mascara de sombras |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US4131822A (es) |
| JP (1) | JPS53145469A (es) |
| AT (1) | AT372804B (es) |
| AU (1) | AU3582378A (es) |
| BR (1) | BR7803062A (es) |
| CA (1) | CA1111489A (es) |
| DE (1) | DE2822016C3 (es) |
| ES (1) | ES469770A1 (es) |
| FI (1) | FI781510A (es) |
| FR (1) | FR2391554A1 (es) |
| GB (1) | GB1597926A (es) |
| IT (1) | IT1096227B (es) |
| MX (1) | MX4198E (es) |
| NL (1) | NL7805462A (es) |
| PL (1) | PL117549B1 (es) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4300069A (en) * | 1979-12-18 | 1981-11-10 | Rca Corporation | Color picture tube having improved slit type shadow mask and method of making same |
| US5243253A (en) * | 1991-07-30 | 1993-09-07 | Thomson Consumer Electronics, Inc. | Color picture tube having shadow mask with improved tie bar grading |
| DE69718986T2 (de) * | 1996-11-11 | 2004-01-08 | Kabushiki Kaisha Toshiba, Kawasaki | Schattenmaske und Verfahren zu deren Herstellung |
| JP2002110063A (ja) * | 2000-09-28 | 2002-04-12 | Dainippon Printing Co Ltd | シャドウマスク |
| US6674224B2 (en) * | 2001-03-06 | 2004-01-06 | Thomson Licensing S.A. | Tension focus mask for a cathode-ray tube (CRT) |
Family Cites Families (3)
| 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 |
| US3916243A (en) * | 1974-09-20 | 1975-10-28 | Buckbee Mears Co | Channeled shadow mask |
| US4048536A (en) * | 1976-03-18 | 1977-09-13 | Buckbee-Mears Company | Shadow mask with plurality of recessed regions extending across mask in two directions |
-
1977
- 1977-05-20 US US05/799,078 patent/US4131822A/en not_active Expired - Lifetime
-
1978
- 1978-05-05 AU AU35823/78A patent/AU3582378A/en active Pending
- 1978-05-09 MX MX78100598U patent/MX4198E/es unknown
- 1978-05-12 FI FI781510A patent/FI781510A/fi not_active Application Discontinuation
- 1978-05-12 ES ES469770A patent/ES469770A1/es not_active Expired
- 1978-05-12 GB GB19160/78A patent/GB1597926A/en not_active Expired
- 1978-05-16 CA CA303,496A patent/CA1111489A/en not_active Expired
- 1978-05-16 BR BR7803062A patent/BR7803062A/pt unknown
- 1978-05-17 IT IT23526/78A patent/IT1096227B/it active
- 1978-05-19 FR FR7814843A patent/FR2391554A1/fr active Granted
- 1978-05-19 DE DE2822016A patent/DE2822016C3/de not_active Expired
- 1978-05-19 NL NL7805462A patent/NL7805462A/xx not_active Application Discontinuation
- 1978-05-19 AT AT0367178A patent/AT372804B/de not_active IP Right Cessation
- 1978-05-19 JP JP6055578A patent/JPS53145469A/ja active Granted
- 1978-05-20 PL PL1978206969A patent/PL117549B1/pl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2391554B1 (es) | 1983-04-22 |
| NL7805462A (nl) | 1978-11-22 |
| FI781510A (fi) | 1978-11-21 |
| AT372804B (de) | 1983-11-25 |
| PL117549B1 (en) | 1981-08-31 |
| GB1597926A (en) | 1981-09-16 |
| JPS5747539B2 (es) | 1982-10-09 |
| MX4198E (es) | 1982-01-26 |
| BR7803062A (pt) | 1979-01-02 |
| ATA367178A (de) | 1983-03-15 |
| JPS53145469A (en) | 1978-12-18 |
| PL206969A1 (pl) | 1979-02-12 |
| AU3582378A (en) | 1979-11-08 |
| IT1096227B (it) | 1985-08-26 |
| DE2822016A1 (de) | 1978-11-23 |
| DE2822016C3 (de) | 1980-07-24 |
| FR2391554A1 (fr) | 1978-12-15 |
| US4131822A (en) | 1978-12-26 |
| CA1111489A (en) | 1981-10-27 |
| IT7823526A0 (it) | 1978-05-17 |
| DE2822016B2 (de) | 1979-11-08 |
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