GB613891A - Improvements in or relating to cathode ray tubes - Google Patents

Improvements in or relating to cathode ray tubes

Info

Publication number
GB613891A
GB613891A GB1935646A GB1935646A GB613891A GB 613891 A GB613891 A GB 613891A GB 1935646 A GB1935646 A GB 1935646A GB 1935646 A GB1935646 A GB 1935646A GB 613891 A GB613891 A GB 613891A
Authority
GB
United Kingdom
Prior art keywords
optical
screen
target
relating
cathode ray
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
GB1935646A
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.)
Rauland Borg Corp
Original Assignee
Rauland Borg 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 Rauland Borg Corp filed Critical Rauland Borg Corp
Priority to GB1935646A priority Critical patent/GB613891A/en
Publication of GB613891A publication Critical patent/GB613891A/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
    • 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
    • H01J29/24—Supports for luminescent material

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

613,891. Optical - projection systems. RAULAND CORPORATION, and SZEGHO, C. S. June 28, 1946, No. 19356. [Class 97 (i)] [Also in Group XL (a)] The luminescent screen of a television system is spaced from the nearest element of the optical projection system and is so curved concavely toward the latter and positioned that it coincides with the conjugate image of the flat viewing screen. The screen and target 6, 7 is of aluminium and the optical system is of two crown and two flint elements 2, 3, 4, 5, respectively. One element 3 may form part of the wall of the C.R. tube. In a modification, the target is transparent, e.g. of mica, with the luminescent screen on the side opposite the optical system. Pin-cushion and barrel distortion of the image may also be corrected by providing a rectangular magnet system surrounding-the scanning beam.
GB1935646A 1946-06-28 1946-06-28 Improvements in or relating to cathode ray tubes Expired GB613891A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1935646A GB613891A (en) 1946-06-28 1946-06-28 Improvements in or relating to cathode ray tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1935646A GB613891A (en) 1946-06-28 1946-06-28 Improvements in or relating to cathode ray tubes

Publications (1)

Publication Number Publication Date
GB613891A true GB613891A (en) 1948-12-03

Family

ID=10127983

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1935646A Expired GB613891A (en) 1946-06-28 1946-06-28 Improvements in or relating to cathode ray tubes

Country Status (1)

Country Link
GB (1) GB613891A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860271A (en) * 1955-06-03 1958-11-11 Sylvania Electric Prod Cathode ray tube
US2921213A (en) * 1957-03-01 1960-01-12 Sol L Reiches Magnetic deflection yoke for a multiple ray beam cathode ray tube and system using the same
US2941102A (en) * 1956-07-26 1960-06-14 Sol L Reiches Post deflection color purity correcting device for a color tv cathode ray tube and system using the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2860271A (en) * 1955-06-03 1958-11-11 Sylvania Electric Prod Cathode ray tube
US2941102A (en) * 1956-07-26 1960-06-14 Sol L Reiches Post deflection color purity correcting device for a color tv cathode ray tube and system using the same
US2921213A (en) * 1957-03-01 1960-01-12 Sol L Reiches Magnetic deflection yoke for a multiple ray beam cathode ray tube and system using the same

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