ES407526A1 - Exposure device for manufacturing a display screen of a colour television display tube - Google Patents

Exposure device for manufacturing a display screen of a colour television display tube

Info

Publication number
ES407526A1
ES407526A1 ES407526A ES407526A ES407526A1 ES 407526 A1 ES407526 A1 ES 407526A1 ES 407526 A ES407526 A ES 407526A ES 407526 A ES407526 A ES 407526A ES 407526 A1 ES407526 A1 ES 407526A1
Authority
ES
Spain
Prior art keywords
light source
display screen
manufacturing
exposure device
quasi
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
ES407526A
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 ES407526A1 publication Critical patent/ES407526A1/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
    • H01J9/2274—Light sources particularly adapted therefor

Landscapes

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

Abstract

An exposure device for manufacturing a display screen of a colour television display tube. The device comprises a quasi-line-shaped light source and a diaphragm having a narrow slot. As a result of this combination a quasi-punctiform part of the light source is visible from the display screen. The shape of the slot is such that the quasi-puntiform part varies its position as a function of the deflection. This position variation is accomplished partly by varying the position of the virtual light source, which is necessary because of the actual shift of the deflection point in the operating tube. The rest of the position variation of the virtual light source is obtained by means of a correction lens system. A special shape of the slot is indicated.
ES407526A 1971-10-14 1972-10-11 Exposure device for manufacturing a display screen of a colour television display tube Expired ES407526A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7114113.A NL163363C (en) 1971-10-14 1971-10-14 EXPOSURE DEVICE FOR MANUFACTURING A COLOR TELEVISION IMAGE TUBE OF THE SHADOW MASK TYPE, AND COLOR TELEVISION IMAGE TUBE MADE USING THEREOF.

Publications (1)

Publication Number Publication Date
ES407526A1 true ES407526A1 (en) 1976-02-01

Family

ID=19814254

Family Applications (1)

Application Number Title Priority Date Filing Date
ES407526A Expired ES407526A1 (en) 1971-10-14 1972-10-11 Exposure device for manufacturing a display screen of a colour television display tube

Country Status (11)

Country Link
US (1) US3780629A (en)
AU (1) AU4752472A (en)
BE (1) BE790090A (en)
CA (1) CA975205A (en)
DE (1) DE2248643B2 (en)
ES (1) ES407526A1 (en)
FR (1) FR2156344B1 (en)
GB (1) GB1342449A (en)
HK (1) HK58076A (en)
IT (1) IT975227B (en)
NL (1) NL163363C (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4001018A (en) * 1973-06-13 1977-01-04 Tokyo Shibaura Electric Co., Ltd. Method for making a stripe screen on a face plate of a cathode ray tube by rotating correction lens
GB1446835A (en) * 1974-03-13 1976-08-18 Matsushita Electronics Corp Light exposing apparatus for forming a phosphor screen of a cathode ray tube
NL7515224A (en) * 1975-12-31 1977-07-04 Philips Nv EXPOSURE DEVICE FOR MANUFACTURE OF CATHODE BEAM TUBES FOR DISPLAYING COLORED IMAGES AND CATHODE BEAM TUBE MADE WITH SUCH DEVICE.
DE3027704C2 (en) * 1980-07-22 1984-03-22 Standard Elektrik Lorenz Ag, 7000 Stuttgart Process for the production of a correction filter for the exposure of the fluorescent screens of color picture tubes
US4590137A (en) * 1984-03-30 1986-05-20 Rca Corporation Method and apparatus for screening line screen slit mask color picture tubes
JPH0787077B2 (en) * 1988-04-13 1995-09-20 三菱電機株式会社 In-line type shadow mask type color cathode ray tube exposure device
GB2227361B (en) * 1988-12-23 1993-11-17 Samsung Electronic Devices Arc length changing apparatus in exposing device and method thereof
KR910004952Y1 (en) * 1988-12-23 1991-07-10 삼성전관 주식회사 Variable device of arc length of the lightening equipment
US5270753A (en) * 1992-06-29 1993-12-14 Zenith Electronics Corporation Optical aperture device for manufacturing color cathode ray tubes
US5946519A (en) * 1997-08-18 1999-08-31 Chunghwa Picture Tubes, Ltd. Light source for forming phosphor elements on CRT display screen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3448667A (en) * 1963-10-18 1969-06-10 Sylvania Electric Prod Light attenuation means
US3559546A (en) * 1967-11-01 1971-02-02 Sylvania Electric Prod Cathode ray tube screen exposure

Also Published As

Publication number Publication date
NL163363B (en) 1980-03-17
US3780629A (en) 1973-12-25
BE790090A (en) 1973-04-13
IT975227B (en) 1974-07-20
FR2156344A1 (en) 1973-05-25
DE2248643B2 (en) 1977-04-21
NL163363C (en) 1980-08-15
FR2156344B1 (en) 1977-08-05
HK58076A (en) 1976-10-01
NL7114113A (en) 1973-04-17
CA975205A (en) 1975-09-30
DE2248643A1 (en) 1973-04-19
GB1342449A (en) 1974-01-03
AU4752472A (en) 1974-05-09

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