DE3669089D1 - METHOD FOR DEEP-DRAWING A SHADOW MASK FOR A COLORED PIPE TUBE, MASK PRODUCED BY THIS METHOD, AND COLORED PIPE TUBE WITH SUCH A MASK. - Google Patents

METHOD FOR DEEP-DRAWING A SHADOW MASK FOR A COLORED PIPE TUBE, MASK PRODUCED BY THIS METHOD, AND COLORED PIPE TUBE WITH SUCH A MASK.

Info

Publication number
DE3669089D1
DE3669089D1 DE8686201961T DE3669089T DE3669089D1 DE 3669089 D1 DE3669089 D1 DE 3669089D1 DE 8686201961 T DE8686201961 T DE 8686201961T DE 3669089 T DE3669089 T DE 3669089T DE 3669089 D1 DE3669089 D1 DE 3669089D1
Authority
DE
Germany
Prior art keywords
mask
pipe tube
colored pipe
shadow mask
skirt
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
DE8686201961T
Other languages
German (de)
Inventor
Den Berg Adrianus Henricus Van
De Kerkhof Marianus Antoni Van
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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.)
Filing date
Publication date
Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE3669089D1 publication Critical patent/DE3669089D1/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
    • H01J29/02—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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)

Abstract

A shadow mask sheet 1 for a colour display tube consisting of an iron-nickel alloy of the invar type is drape drawn by means of a drawing process. During said drawing process the shadow mask sheet 1 is provided with a skirt 2. By keeping the rim 16 of the skirt 22 clamped in a slip-free manner during the drawing process, the skirt 22 can be plastically deformed simultaneously with the formation of the skirt 22, as a result of which the reproducibility of the shape of the shadow mask sheet 1 is increased.
DE8686201961T 1985-11-11 1986-11-10 METHOD FOR DEEP-DRAWING A SHADOW MASK FOR A COLORED PIPE TUBE, MASK PRODUCED BY THIS METHOD, AND COLORED PIPE TUBE WITH SUCH A MASK. Expired - Lifetime DE3669089D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8503087A NL8503087A (en) 1985-11-11 1985-11-11 METHOD FOR DRAWING A SHADOW MASK FOR A COLOR IMAGE TUBE, SHADOW MASK MANUFACTURED ACCORDING TO THE SAID METHOD AND COLOR IMAGE TUBE PROVIDING SUCH A SHADOW MASK.

Publications (1)

Publication Number Publication Date
DE3669089D1 true DE3669089D1 (en) 1990-03-29

Family

ID=19846835

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686201961T Expired - Lifetime DE3669089D1 (en) 1985-11-11 1986-11-10 METHOD FOR DEEP-DRAWING A SHADOW MASK FOR A COLORED PIPE TUBE, MASK PRODUCED BY THIS METHOD, AND COLORED PIPE TUBE WITH SUCH A MASK.

Country Status (9)

Country Link
EP (1) EP0224296B1 (en)
JP (1) JPH0754662B2 (en)
KR (1) KR950002261B1 (en)
CN (1) CN1007849B (en)
AT (1) ATE50470T1 (en)
DD (1) DD250398A5 (en)
DE (1) DE3669089D1 (en)
ES (1) ES2013993B3 (en)
NL (1) NL8503087A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1239511B (en) * 1990-03-30 1993-11-03 Videocolor Spa METHOD OF FORMING A SHADOW MASK FOR A TUBE OF REPRODUCTION OF COLOR IMAGES
IT1251416B (en) * 1991-10-23 1995-05-09 Videocolor Spa MANUFACTURING PROCESS OF A COLOR SELECTION MASK FOR A CATHODE RAY TUBE AND DEVICE FOR THE REALIZATION OF SUCH PROCESS
KR100281371B1 (en) * 1992-11-23 2001-03-02 요트.게.아. 롤페즈 Color selection means for color display tubes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3584366A (en) * 1968-08-07 1971-06-15 Wallace Expanding Machines Process for manufacture of shadow mask frames
NL7508287A (en) * 1975-07-11 1977-01-13 Philips Nv METHOD AND DEVICE FOR DRAWING A SHADOW MASK AND SHADOW MASK DRAWN ACCORDING TO THIS METHOD OR WITH THIS DEVICE.
JPS59200721A (en) * 1983-04-27 1984-11-14 Toshiba Corp Manufacture of shadow mask
JPS6148523A (en) * 1984-08-10 1986-03-10 Toshiba Corp Manufacture of shadow mask
JPS6282625A (en) * 1985-10-04 1987-04-16 Toshiba Corp Manufacture of shadowmask

Also Published As

Publication number Publication date
ES2013993B3 (en) 1990-06-16
ATE50470T1 (en) 1990-03-15
NL8503087A (en) 1987-06-01
KR870005431A (en) 1987-06-08
CN1007849B (en) 1990-05-02
DD250398A5 (en) 1987-10-08
KR950002261B1 (en) 1995-03-15
CN86107752A (en) 1988-05-18
JPS62113333A (en) 1987-05-25
EP0224296A1 (en) 1987-06-03
JPH0754662B2 (en) 1995-06-07
EP0224296B1 (en) 1990-02-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL

8327 Change in the person/name/address of the patent owner

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N

8320 Willingness to grant licences declared (paragraph 23)
8321 Willingness to grant licences paragraph 23 withdrawn
8339 Ceased/non-payment of the annual fee