ES438328A1 - Manufacturing a shadow mask tube - Google Patents

Manufacturing a shadow mask tube

Info

Publication number
ES438328A1
ES438328A1 ES438328A ES438328A ES438328A1 ES 438328 A1 ES438328 A1 ES 438328A1 ES 438328 A ES438328 A ES 438328A ES 438328 A ES438328 A ES 438328A ES 438328 A1 ES438328 A1 ES 438328A1
Authority
ES
Spain
Prior art keywords
shadow mask
light source
manufacturing
tube
exposure
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
Application number
ES438328A
Other languages
Spanish (es)
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
Publication of ES438328A1 publication Critical patent/ES438328A1/en
Expired legal-status Critical Current

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
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/22—Applying luminescent coatings
    • H01J9/227—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines
    • H01J9/2271—Applying luminescent coatings with luminescent material discontinuously arranged, e.g. in dots or lines by photographic processes
    • H01J9/2272—Devices for carrying out the processes, e.g. light houses

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

A method of manufacturing a shadow mask tube for color imaging, in which, at least in one of several exposure stages used, a photosensitive layer, arranged in a window section of the tube, is exposed to the light from a light source by means of the shadow mask from two points located on each side of an exposure center, characterized in that optical correction means are produced between the light source and the window section that produce a virtual displacement of the light source, and why the said exposure phase is divided into at least two parts between which the optical correction means are rotated 180º about an axis that extends substantially at right angles to the section window. (Machine-translation by Google Translate, not legally binding)
ES438328A 1974-06-10 1975-06-07 Manufacturing a shadow mask tube Expired ES438328A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7407716A NL7407716A (en) 1974-06-10 1974-06-10 PROCEDURE FOR MANUFACTURING A SHADOW MASK TUBE AND TUBE MADE IN ACCORDANCE WITH THIS PROCESS.

Publications (1)

Publication Number Publication Date
ES438328A1 true ES438328A1 (en) 1977-06-01

Family

ID=19821509

Family Applications (1)

Application Number Title Priority Date Filing Date
ES438328A Expired ES438328A1 (en) 1974-06-10 1975-06-07 Manufacturing a shadow mask tube

Country Status (10)

Country Link
JP (1) JPS519366A (en)
BE (1) BE830028A (en)
BR (1) BR7503627A (en)
CA (1) CA1029082A (en)
DE (1) DE2523668A1 (en)
ES (1) ES438328A1 (en)
FR (1) FR2274136A1 (en)
GB (1) GB1513391A (en)
IT (1) IT1036200B (en)
NL (1) NL7407716A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51142267A (en) * 1975-06-03 1976-12-07 Mitsubishi Electric Corp Method for illuminating stripe screen
US4475797A (en) * 1982-07-30 1984-10-09 Zenith Electronics Corporation Color cathode ray tube screening exposure method and apparatus
US4634247A (en) * 1985-12-19 1987-01-06 Rca Corporation Method for screening line screen slit mask color picture tubes
JP2746064B2 (en) * 1993-07-29 1998-04-28 関西日本電気株式会社 Exposure equipment

Also Published As

Publication number Publication date
JPS519366A (en) 1976-01-26
CA1029082A (en) 1978-04-04
GB1513391A (en) 1978-06-07
BR7503627A (en) 1976-06-22
FR2274136A1 (en) 1976-01-02
DE2523668A1 (en) 1975-12-18
IT1036200B (en) 1979-10-30
NL7407716A (en) 1975-12-12
FR2274136B1 (en) 1979-05-11
BE830028A (en) 1975-12-09

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