EP0039906A3 - Television picture tubes and hole technology - Google Patents
Television picture tubes and hole technology Download PDFInfo
- Publication number
- EP0039906A3 EP0039906A3 EP81103455A EP81103455A EP0039906A3 EP 0039906 A3 EP0039906 A3 EP 0039906A3 EP 81103455 A EP81103455 A EP 81103455A EP 81103455 A EP81103455 A EP 81103455A EP 0039906 A3 EP0039906 A3 EP 0039906A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- television picture
- picture tubes
- hole technology
- technology
- hole
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/14—Manufacture of electrodes or electrode systems of non-emitting electrodes
- H01J9/142—Manufacture of electrodes or electrode systems of non-emitting electrodes of 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
- H01J29/02—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
- H01J29/076—Shadow masks for colour television tubes characterised by the shape or distribution of beam-passing apertures
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electrodes For Cathode-Ray Tubes (AREA)
- ing And Chemical Polishing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT81103455T ATE22367T1 (en) | 1980-05-12 | 1981-05-07 | SHADOW MASK FOR A COLOR TELEVISION TUBE, COLOR TELEVISION TUBE WITH SUCH MASK AND METHOD OF MAKING THE MASK. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14868280A | 1980-05-12 | 1980-05-12 | |
US148683 | 1980-05-12 | ||
US06/148,683 US4353948A (en) | 1980-05-12 | 1980-05-12 | Hole technology |
US148682 | 1980-05-12 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0039906A2 EP0039906A2 (en) | 1981-11-18 |
EP0039906A3 true EP0039906A3 (en) | 1982-06-16 |
EP0039906B1 EP0039906B1 (en) | 1986-09-17 |
Family
ID=26846063
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19810103455 Expired EP0039906B1 (en) | 1980-05-12 | 1981-05-07 | Aperture mask for a color television tube, color television tube comprising such a mask and method for obtaining the mask |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0039906B1 (en) |
JP (1) | JPH0713158Y2 (en) |
AR (1) | AR223591A1 (en) |
BR (1) | BR8102909A (en) |
CA (1) | CA1175876A (en) |
DE (1) | DE3175329D1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69126695T2 (en) * | 1990-11-22 | 1998-02-12 | Toshiba Kawasaki Kk | Shadow mask for color cathode ray tube |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3973965A (en) * | 1972-05-30 | 1976-08-10 | Tokyo Shibaura Electric Co., Ltd. | Making shadow mask with slit-shaped apertures for CRT |
US4069085A (en) * | 1973-07-16 | 1978-01-17 | U.S. Philips Corporation | Apparatus for forming apertures in a thin metal tape such as a shadow mask for a color television display tube |
US4168450A (en) * | 1976-07-19 | 1979-09-18 | Hitachi, Ltd. | Slot type shadow mask |
GB2020892A (en) * | 1978-05-10 | 1979-11-21 | Rca Corp | C.R.T. Silt Type Shadow Mask |
GB2067827A (en) * | 1979-12-18 | 1981-07-30 | Rca Corp | Colour picture tube having slit type shadow mask |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4881762U (en) * | 1971-12-30 | 1973-10-05 | ||
US3916243A (en) * | 1974-09-20 | 1975-10-28 | Buckbee Mears Co | Channeled shadow mask |
-
1981
- 1981-04-29 CA CA000376484A patent/CA1175876A/en not_active Expired
- 1981-05-05 AR AR28520981A patent/AR223591A1/en active
- 1981-05-07 EP EP19810103455 patent/EP0039906B1/en not_active Expired
- 1981-05-07 DE DE8181103455T patent/DE3175329D1/en not_active Expired
- 1981-05-11 BR BR8102909A patent/BR8102909A/en unknown
-
1992
- 1992-03-09 JP JP1992011637U patent/JPH0713158Y2/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3973965A (en) * | 1972-05-30 | 1976-08-10 | Tokyo Shibaura Electric Co., Ltd. | Making shadow mask with slit-shaped apertures for CRT |
US4069085A (en) * | 1973-07-16 | 1978-01-17 | U.S. Philips Corporation | Apparatus for forming apertures in a thin metal tape such as a shadow mask for a color television display tube |
US4168450A (en) * | 1976-07-19 | 1979-09-18 | Hitachi, Ltd. | Slot type shadow mask |
GB2020892A (en) * | 1978-05-10 | 1979-11-21 | Rca Corp | C.R.T. Silt Type Shadow Mask |
GB2067827A (en) * | 1979-12-18 | 1981-07-30 | Rca Corp | Colour picture tube having slit type shadow mask |
Also Published As
Publication number | Publication date |
---|---|
AR223591A1 (en) | 1981-08-31 |
BR8102909A (en) | 1982-02-02 |
EP0039906B1 (en) | 1986-09-17 |
EP0039906A2 (en) | 1981-11-18 |
JPH069043U (en) | 1994-02-04 |
DE3175329D1 (en) | 1986-10-23 |
CA1175876A (en) | 1984-10-09 |
JPH0713158Y2 (en) | 1995-03-29 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
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PUAL | Search report despatched |
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17P | Request for examination filed |
Effective date: 19820909 |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: BMC INDUSTRIES, INC. |
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