GB735524A - Improvements in or relating to receivers for reproducing coloured or stereoscopic television images - Google Patents

Improvements in or relating to receivers for reproducing coloured or stereoscopic television images

Info

Publication number
GB735524A
GB735524A GB18859/52A GB1885952A GB735524A GB 735524 A GB735524 A GB 735524A GB 18859/52 A GB18859/52 A GB 18859/52A GB 1885952 A GB1885952 A GB 1885952A GB 735524 A GB735524 A GB 735524A
Authority
GB
United Kingdom
Prior art keywords
grid
screen
colour
strips
grids
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
GB18859/52A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries Ltd
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 Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB735524A publication Critical patent/GB735524A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J31/22—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes for stereoscopic displays
    • 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
    • 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)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

735,524. Colour and stereoscopic television tubes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 25, 1952 [July 28, 1951]; No. 18859/52. Class 39 (1). In a colour or stereoscopic television receiver the electron beam before striking the luminescent or incandescent screen passes through two parallel wire grids 1, 2 in which the wires of one grid lie centrally behind the apertures of the other grid, the direct voltages on the grids and the field electrode 3 are higher than the cathode voltage, and an alternating voltage supplied to at least one grid produces a displacement of the point of impact of the beam on the screen for scanning different colour bands. The field electrode may be the luminescent screen itself which if not conductive should contain metal elements, or it is a metal grid or layer near to or integral with and on either side of the screen. The spacing of the grids is small and may be a fifth of the grid-field electrode spacing. The screen may carry strips of different luminescent materials or be backed by a filter composed of strips with different colour absorptions; alternatively the scanning image is focused on to a screen painted in strips of different colours arranged parallel to the grid wires. The colour filter may be replaced by polarizing filters for stereoscopic reproduction. Specifications 733,176 and 735,525 are referred to.
GB18859/52A 1951-07-28 1952-07-25 Improvements in or relating to receivers for reproducing coloured or stereoscopic television images Expired GB735524A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL303108X 1951-07-28

Publications (1)

Publication Number Publication Date
GB735524A true GB735524A (en) 1955-08-24

Family

ID=19783391

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18859/52A Expired GB735524A (en) 1951-07-28 1952-07-25 Improvements in or relating to receivers for reproducing coloured or stereoscopic television images

Country Status (6)

Country Link
BE (1) BE513151A (en)
CH (1) CH303108A (en)
DE (1) DE956412C (en)
FR (1) FR1144033A (en)
GB (1) GB735524A (en)
NL (1) NL162980B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL135376C (en) * 1963-01-25

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE736575C (en) * 1938-07-11 1943-06-22 Fernseh Gmbh Cathode ray tubes for generating multicolored images on a fluorescent screen
US2446791A (en) * 1946-06-11 1948-08-10 Rca Corp Color television tube

Also Published As

Publication number Publication date
CH303108A (en) 1954-11-15
DE956412C (en) 1957-01-17
FR1144033A (en) 1957-10-08
BE513151A (en)
NL162980B (en)

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