GB1071879A - Making colour-phosphor mosaic screens - Google Patents

Making colour-phosphor mosaic screens

Info

Publication number
GB1071879A
GB1071879A GB11623/65A GB1162365A GB1071879A GB 1071879 A GB1071879 A GB 1071879A GB 11623/65 A GB11623/65 A GB 11623/65A GB 1162365 A GB1162365 A GB 1162365A GB 1071879 A GB1071879 A GB 1071879A
Authority
GB
United Kingdom
Prior art keywords
interposed
lens
mask
zones
light
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
GB11623/65A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB1071879A publication Critical patent/GB1071879A/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
    • H01J9/2273—Auxiliary lenses and filters
    • 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
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/18—Luminescent screens
    • H01J29/187—Luminescent screens screens with more than one luminescent material (as mixtures for the treatment of the screens)

Landscapes

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

Abstract

1,071,879. Colour television tubes. RADIO CORPORATION OF AMERICA. March 18, 1965 [March 19, 1964], No: 11623/65. Heading HID. [Also in Division G2] In a photographic method of printing the multicolour phosphor dot screen of a 3-gun shadow-mask television display tube by exposure to light through the apertures of the shadow mask, a lens having a stepped profile is interposed between the mask and the source of light to allow for the degrouping of the electron spots which arises under dynamic convergence of the electron beams in the operation of the tube. Due to the discontinuities of the boundaries between the stepped zones, a pair of complementary lenses may be interposed successively, each lens having half the total number of annular stepped zones and the boundaries between the zones being coated to render them opaque to the light beam. The coating may be applied either by evaporation or by a photographic technique. A further lens of the type described in Specification 823,385 and having a curved profile is also interposed in the light beam to correct for the radial misregister between the electron spots and the phosphor dot trials.
GB11623/65A 1964-03-19 1965-03-18 Making colour-phosphor mosaic screens Expired GB1071879A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US353052A US3279340A (en) 1964-03-19 1964-03-19 Art of making color-phosphor mosaic screens

Publications (1)

Publication Number Publication Date
GB1071879A true GB1071879A (en) 1967-06-14

Family

ID=23387575

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11623/65A Expired GB1071879A (en) 1964-03-19 1965-03-18 Making colour-phosphor mosaic screens

Country Status (4)

Country Link
US (1) US3279340A (en)
DE (1) DE1274167B (en)
GB (1) GB1071879A (en)
NL (1) NL6503501A (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3420150A (en) * 1965-05-10 1969-01-07 Rauland Corp Lighthouse intensity exposure control lens
US3476025A (en) * 1966-06-15 1969-11-04 Rca Corp Cathode ray tube and method of manufacture
US3452657A (en) * 1966-07-18 1969-07-01 William J G Cox Multiple pin-hole camera
US3495511A (en) * 1967-10-05 1970-02-17 Nat Video Corp Heterogeneous lens for forming phosphor patterns on color kinescope
US3628850A (en) * 1970-02-24 1971-12-21 Hitachi Ltd Correcting lens
JPS5040938B1 (en) * 1971-03-05 1975-12-27
JPS4721552U (en) * 1971-03-05 1972-11-10
NL7106346A (en) * 1971-05-08 1972-11-10
JPS5129635B2 (en) * 1971-09-21 1976-08-26
US4111694A (en) * 1972-05-09 1978-09-05 U.S. Philips Corporation Method for manufacturing the picture display screen of a color television tube using a cylinder lens
US3828358A (en) * 1972-11-17 1974-08-06 Sony Corp Exposure apparatus for the direct photographic production of a phosphor screen on the face-plate of a color picture tube
US3782253A (en) * 1973-05-02 1974-01-01 Rca Corp Color television picture tube screening method
US3893750A (en) * 1973-05-02 1975-07-08 Rca Corp Cathode-ray tube screening correction lens with a non-solarizing material
US4135930A (en) * 1974-03-07 1979-01-23 Matsushita Electronics Corporation Method for manufacturing the phosphor screen of color-picture tube
US4165920A (en) * 1977-07-27 1979-08-28 Qantix Corporation Echo reduction improvement in a front face glare reduction overlay
GB8712458D0 (en) * 1987-05-27 1987-07-01 Philips Nv Producing colour picture tube screen
US6504649B1 (en) 2000-01-13 2003-01-07 Kenneth J. Myers Privacy screens and stereoscopic effects devices utilizing microprism sheets
US6330111B1 (en) 2000-06-13 2001-12-11 Kenneth J. Myers, Edward Greenberg Lighting elements including light emitting diodes, microprism sheet, reflector, and diffusing agent
US6331915B1 (en) 2000-06-13 2001-12-18 Kenneth J. Myers Lighting element including light emitting diodes, microprism sheet, reflector, and diffusing agent

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2101016A (en) * 1935-08-08 1937-12-07 Howard D Beach Lens
BE544830A (en) * 1955-02-01
US3008390A (en) * 1955-12-27 1961-11-14 Gen Electric Method and apparatus for fabricating screens for television picture tubes
US3045530A (en) * 1960-07-14 1962-07-24 Agency Ind Science Techn Optical system having aberration correcting plate member with ring shaped phase retarding layers

Also Published As

Publication number Publication date
NL6503501A (en) 1965-09-20
DE1274167B (en) 1968-08-01
US3279340A (en) 1966-10-18

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