CA1000339A - Increased light output color television tube and method of making same - Google Patents

Increased light output color television tube and method of making same

Info

Publication number
CA1000339A
CA1000339A CA196,087A CA196087A CA1000339A CA 1000339 A CA1000339 A CA 1000339A CA 196087 A CA196087 A CA 196087A CA 1000339 A CA1000339 A CA 1000339A
Authority
CA
Canada
Prior art keywords
light output
making same
output color
color television
increased 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
CA196,087A
Other versions
CA196087S (en
Inventor
Himanshu M. Patel
George D. Dimmick
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of CA1000339A publication Critical patent/CA1000339A/en
Expired 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
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/20—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours
    • H01J31/201—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode
    • H01J31/203—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for displaying images or patterns in two or more colours using a colour-selection electrode with more than one electron beam
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
CA196,087A 1973-04-26 1974-03-27 Increased light output color television tube and method of making same Expired CA1000339A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US354579A US3890527A (en) 1973-04-26 1973-04-26 Triad color screen having elements larger than mask apertures near screen center and smaller near periphery

Publications (1)

Publication Number Publication Date
CA1000339A true CA1000339A (en) 1976-11-23

Family

ID=23393986

Family Applications (1)

Application Number Title Priority Date Filing Date
CA196,087A Expired CA1000339A (en) 1973-04-26 1974-03-27 Increased light output color television tube and method of making same

Country Status (5)

Country Link
US (1) US3890527A (en)
JP (1) JPS5015477A (en)
AU (1) AU6701574A (en)
CA (1) CA1000339A (en)
DE (1) DE2419666A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5727574B2 (en) * 1974-03-13 1982-06-11
US4100452A (en) * 1976-11-02 1978-07-11 Zenith Radio Corporation Color television picture tube image screen having positive and negative misregistration tolerance conditions
NL7706617A (en) * 1977-06-16 1978-12-19 Philips Nv COLOR IMAGE TUBE.
US4139797A (en) * 1977-07-01 1979-02-13 Zenith Radio Corporation Color television screen and shadow mask assembly having increased tolerance to radial registration errors

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947899A (en) * 1958-01-23 1960-08-02 Zenith Radio Corp Color image reproducers
GB1165766A (en) * 1967-06-06 1969-10-01 Thorn Aei Radio And Tubes Ltd Improvements in Cathode Ray Tubes for Colour Television
US3790839A (en) * 1972-04-04 1974-02-05 Zenith Radio Corp Rectangular grade black surround screen
JPS51423A (en) * 1974-06-22 1976-01-06 Atsuho Tanaka SEIZUYOSETSUCHAKUTEEPUNO ITSUTEISETSUDAN OYOBI TEICHAKUARUMINIUMUGOKINBAN

Also Published As

Publication number Publication date
US3890527A (en) 1975-06-17
JPS5015477A (en) 1975-02-18
DE2419666A1 (en) 1974-11-21
AU6701574A (en) 1975-09-25

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