GB442500A - Improvements in or relating to cathode ray tubes - Google Patents

Improvements in or relating to cathode ray tubes

Info

Publication number
GB442500A
GB442500A GB13794/34A GB1379434A GB442500A GB 442500 A GB442500 A GB 442500A GB 13794/34 A GB13794/34 A GB 13794/34A GB 1379434 A GB1379434 A GB 1379434A GB 442500 A GB442500 A GB 442500A
Authority
GB
United Kingdom
Prior art keywords
screen
observation
ray tubes
lens
cathode
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
GB13794/34A
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.)
AC Cossor Ltd
Original Assignee
AC Cossor 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 AC Cossor Ltd filed Critical AC Cossor Ltd
Priority claimed from US727207A external-priority patent/US2115093A/en
Priority claimed from GB2153134A external-priority patent/GB446252A/en
Publication of GB442500A publication Critical patent/GB442500A/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
    • 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
    • H01J29/021—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof arrangements for eliminating interferences in the tube
    • 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
    • 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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/70—Arrangements for deflecting ray or beam
    • H01J29/72—Arrangements for deflecting ray or beam along one straight line or along two perpendicular straight lines
    • H01J29/74—Deflecting by electric fields only
    • 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
    • H01J29/94—Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering

Landscapes

  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

442,500. Oscillographs. COSSOR, Ltd., A. C., Highbury Grove, London.-(Assignees of Ardenne, Baron M. von; 19, Jungfernstieg, Lichterfelde, Berlin) May 7, 1934, No. 13794. Void [Abridged as open to inspection under Sect. 91 of the Acts, Dec. 11, 1934]. Drawings to Specification. [Class 37] [See also Group XL] Cathode-ray tubes for oscillography &c. having the image screen inclined to the tube axis and viewed from the side struck by the ray are constructed to avoid image distortions, such as those due to the inclination of the screen and to inclined observation of the screen, and have the screen mounted in a spherical bulb to avoid distortion due to streaks in the glass and to enable wide-aperture, short-focus lenses to be brought near the screen. The tube may be mounted in an inclined position in a closed box with an inclined window for observation of the electrodes and particularly of the cathode temperature : the screen is vertical and cooperates with an adjustable lens. For photographic recording, the lens is adjustable together with a camera.
GB13794/34A 1934-05-24 1934-05-07 Improvements in or relating to cathode ray tubes Expired GB442500A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US727207A US2115093A (en) 1933-06-10 1934-05-24 Cathode ray tube
GB2153134A GB446252A (en) 1934-07-23 1934-07-23 Improvements in or relating to cathode ray tubes
US126161A US2249066A (en) 1934-05-24 1937-02-17 Method of operating cathode ray tubes

Publications (1)

Publication Number Publication Date
GB442500A true GB442500A (en) 1936-02-10

Family

ID=32073923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13794/34A Expired GB442500A (en) 1934-05-24 1934-05-07 Improvements in or relating to cathode ray tubes

Country Status (2)

Country Link
US (1) US2249066A (en)
GB (1) GB442500A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2540721A (en) * 1946-09-09 1951-02-06 Motorola Inc Kinescope combined with simultaneously adjustable lens and viewing screen

Also Published As

Publication number Publication date
US2249066A (en) 1941-07-15

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