GB594883A - Improvements in or relating to cathode ray tubes - Google Patents

Improvements in or relating to cathode ray tubes

Info

Publication number
GB594883A
GB594883A GB1567644A GB1567644A GB594883A GB 594883 A GB594883 A GB 594883A GB 1567644 A GB1567644 A GB 1567644A GB 1567644 A GB1567644 A GB 1567644A GB 594883 A GB594883 A GB 594883A
Authority
GB
United Kingdom
Prior art keywords
screen
cathode
layer
ray tubes
relating
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
GB1567644A
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.)
Individual
Original Assignee
Individual
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB594883A publication Critical patent/GB594883A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7425—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being a dielectric deformable layer controlled by an electron beam, e.g. eidophor projector

Landscapes

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

Abstract

594,883. Cathode-ray tubes. EHRENBERG, W. Aug. 17, 1944, No. 15676 [Class 39 (i)] A screen for a cathode-ray tube comprises a layer of material, e.g. barium fluoride, powdered glass or quartz having an irregular surface and thus normally opaque to light, this layer being coated with a wetting liquid such as octyl sebacate having substantially the same refractive index as the material, the two together forming a transparent screen. When scanned by a cathode-ray beam the liquid recedes and exposes the material to an extent dependent on the modulation of the beam, the opacity of the screen being thus varied. The screen may not be applied directly to the glass wall but deposited on a conducting transparent layer connected to the second anode.
GB1567644A 1944-08-17 Improvements in or relating to cathode ray tubes Expired GB594883A (en)

Publications (1)

Publication Number Publication Date
GB594883A true GB594883A (en) 1947-11-21

Family

ID=1731698

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1567644A Expired GB594883A (en) 1944-08-17 Improvements in or relating to cathode ray tubes

Country Status (1)

Country Link
GB (1) GB594883A (en)

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