IT1030444B - Procedimento per la fabbricazione delle maschere di riproduzione per la maschera d ombra di un cinesco pio a colori - Google Patents

Procedimento per la fabbricazione delle maschere di riproduzione per la maschera d ombra di un cinesco pio a colori

Info

Publication number: IT1030444B
Authority: IT; Italy
Prior art keywords: cinesco; pio; color; procedure; manufacture
Prior art date: 1974-03-28

Application number

IT67773/75A

Other languages

English (en)

Original Assignee

Philips Nv

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.)

1974-03-28

Filing date

1975-03-26

Publication date

1979-03-30

1975-03-26 Application filed by Philips Nv filed Critical Philips Nv

1979-03-30 Application granted granted Critical

1979-03-30 Publication of IT1030444B publication Critical patent/IT1030444B/it

Links

238000004519 manufacturing process Methods 0.000 title 1
238000000034 method Methods 0.000 title 1

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

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
Electrodes For Cathode-Ray Tubes (AREA)
Preparing Plates And Mask In Photomechanical Process (AREA)

IT67773/75A 1974-03-28 1975-03-26 Procedimento per la fabbricazione delle maschere di riproduzione per la maschera d ombra di un cinesco pio a colori IT1030444B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL7404209A NL7404209A (nl)	1974-03-28	1974-03-28	Werkwijze voor het vervaardigen van reproduk- tiemaskers voor het schaduwmasker van een beeld- buis en beeldbuis vervaardigd volgens deze werk- wijze.

Publications (1)

Publication Number	Publication Date
IT1030444B true IT1030444B (it)	1979-03-30

Family

ID=19821058

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT67773/75A IT1030444B (it)	1974-03-28	1975-03-26	Procedimento per la fabbricazione delle maschere di riproduzione per la maschera d ombra di un cinesco pio a colori

Country Status (10)

Country	Link
US (1)	US4339516A (it)
JP (1)	JPS50131757A (it)
AU (1)	AU7950775A (it)
BE (1)	BE827212A (it)
CA (1)	CA1027171A (it)
DE (1)	DE2511205C3 (it)
FR (1)	FR2266296B1 (it)
GB (1)	GB1480440A (it)
IT (1)	IT1030444B (it)
NL (1)	NL7404209A (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4429028A (en) *	1982-06-22	1984-01-31	Rca Corporation	Color picture tube having improved slit type shadow mask and method of making same
US5336587A (en) *	1988-05-24	1994-08-09	Kabushiki Kaisha Toshiba	Method of manufacturing main plates for exposure printing
TW378334B (en) *	1994-10-14	2000-01-01	Thomson Consumer Electronics	Method of forming an enhanced resolution shadow mask

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2292313A (en) *	1940-04-19	1942-08-04	Eastman Kodak Co	Halftone screen
US2750524A (en) *	1951-11-15	1956-06-12	Mergenthaler Linotype Gmbh	Perforate mask for multicolor television apparatus and method of producting same
US3993487A (en) *	1969-01-03	1976-11-23	Matsushita Electronics Corporation	Method for manufacture of color television picture tubes using rotating light source
US3666462A (en) *	1969-03-28	1972-05-30	Zenith Radio Corp	Process of screening a shadow mask color tube
US3708336A (en) *	1969-10-29	1973-01-02	Nippon Columbia	Method of making color phosphor screen of color picture tube nishizawa m,ja
NL163362C (nl)	1971-02-11	1980-08-15	Philips Nv	Werkwijze voor het vervaardigen van een paar reproduk- tie maskers ten gebruike bij de vervaardiging van schaduwmaskers, alsmede schaduwmasker voor een kleuren- televisieweergeefbuis, verkregen onder toepassing van deze werkwijze.
US3973965A (en) *	1972-05-30	1976-08-10	Tokyo Shibaura Electric Co., Ltd.	Making shadow mask with slit-shaped apertures for CRT

1974
- 1974-03-28 NL NL7404209A patent/NL7404209A/xx not_active Application Discontinuation
1975
- 1975-03-14 DE DE2511205A patent/DE2511205C3/de not_active Expired
- 1975-03-20 CA CA222,662A patent/CA1027171A/en not_active Expired
- 1975-03-25 GB GB12379/75A patent/GB1480440A/en not_active Expired
- 1975-03-26 JP JP50036644A patent/JPS50131757A/ja active Pending
- 1975-03-26 IT IT67773/75A patent/IT1030444B/it active
- 1975-03-26 BE BE154795A patent/BE827212A/xx unknown
- 1975-03-26 AU AU79507/75A patent/AU7950775A/en not_active Expired
- 1975-03-27 FR FR7509607A patent/FR2266296B1/fr not_active Expired
1978
- 1978-01-25 US US05/872,170 patent/US4339516A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
US4339516A (en)	1982-07-13
JPS50131757A (it)	1975-10-18
DE2511205C3 (de)	1979-04-12
DE2511205A1 (de)	1975-10-02
NL7404209A (nl)	1975-09-30
BE827212A (fr)	1975-09-26
CA1027171A (en)	1978-02-28
DE2511205B2 (de)	1978-08-03
GB1480440A (en)	1977-07-20
AU7950775A (en)	1976-09-30
FR2266296A1 (it)	1975-10-24
FR2266296B1 (it)	1978-02-03

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