GB768008A - Improvements in or relating to grid structures for use in cathode-ray tubes - Google Patents

Improvements in or relating to grid structures for use in cathode-ray tubes

Info

Publication number
GB768008A
GB768008A GB1097/55A GB109755A GB768008A GB 768008 A GB768008 A GB 768008A GB 1097/55 A GB1097/55 A GB 1097/55A GB 109755 A GB109755 A GB 109755A GB 768008 A GB768008 A GB 768008A
Authority
GB
United Kingdom
Prior art keywords
wires
wound
supports
sides
grid
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
GB1097/55A
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.)
Chromatic Television Laboratories Inc
Original Assignee
Chromatic Television Laboratories Inc
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 Chromatic Television Laboratories Inc filed Critical Chromatic Television Laboratories Inc
Publication of GB768008A publication Critical patent/GB768008A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H04N9/22—Picture reproducers using cathode ray tubes using the same beam for more than one primary colour information
    • H04N9/26—Picture reproducers using cathode ray tubes using the same beam for more than one primary colour information using electron-optical colour selection means, e.g. line grid, deflection means in or near the gun or near the phosphor screen

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Electrodes For Cathode-Ray Tubes (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

768,008. Colour television tubes. CHROMATIC TELEVISION LABORATORIES, Inc. Jan. 13, 1955 [Jan. 14, 1954], No. 1097/55. Class 39(1). A deflection control grid for a colour television tube comprises two grids each wound on supports to lie in two planes with ribs of insulating material bearing on both sides to press the wires into one plane. The first grid is wound from a continuous wire onto the support arms 34 of a frame 30 of stainless steel forming two sets of strands 44, 46. The wires pass through angled grooves in the arms 34 so that the projections of wires 44 lie centrally between those of wires 46. A layer of insulating material 48, e.g. a tape of woven glass is applied over both sides of the supports 34 and the parts of the wires 44, 46 wound thereon. The second grid 50, 52 is wound on the supports 34 in the same manner, being insulated from the wires 44, 46 by the taped portions 48. Ribs 54, 56, 58, 60 comprising longitudinally grooved metal rods to which are secured insulating facing rods of ceramic 54a, 56a, 58a, 60a, bear on the wires from both sides and urge them into a common plane. Grooved insulating rods 62 space the wires correctly from the phosphor screen 26.
GB1097/55A 1954-01-14 1955-01-13 Improvements in or relating to grid structures for use in cathode-ray tubes Expired GB768008A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US403987A US2772375A (en) 1954-01-14 1954-01-14 Electrode structure for image-reproducing cathode-ray tubes

Publications (1)

Publication Number Publication Date
GB768008A true GB768008A (en) 1957-02-13

Family

ID=23597665

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1097/55A Expired GB768008A (en) 1954-01-14 1955-01-13 Improvements in or relating to grid structures for use in cathode-ray tubes

Country Status (5)

Country Link
US (1) US2772375A (en)
DE (1) DE946994C (en)
FR (1) FR1117684A (en)
GB (1) GB768008A (en)
NL (2) NL276909A (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1492000A (en) * 1920-08-26 1924-04-29 Rca Corp Thermionic device for wireless telegraphy and telephony
US2026725A (en) * 1932-04-11 1936-01-07 Baker Donald Jerome Television system and method
US2461515A (en) * 1945-07-16 1949-02-15 Arthur B Bronwell Color television system
US2535307A (en) * 1946-04-05 1950-12-26 Philco Corp Grid-controlled electron tube
US2446791A (en) * 1946-06-11 1948-08-10 Rca Corp Color television tube
US2568448A (en) * 1947-09-23 1951-09-18 Gen Electric Parallax correction in color television
US2590764A (en) * 1950-02-23 1952-03-25 Rca Corp Color television image tube

Also Published As

Publication number Publication date
NL193817A (en)
FR1117684A (en) 1956-05-25
DE946994C (en) 1956-08-09
US2772375A (en) 1956-11-27
NL276909A (en)

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