GB504526A - Image analyzing and dissecting tube for television systems - Google Patents

Image analyzing and dissecting tube for television systems

Info

Publication number
GB504526A
GB504526A GB21521/38A GB2152138A GB504526A GB 504526 A GB504526 A GB 504526A GB 21521/38 A GB21521/38 A GB 21521/38A GB 2152138 A GB2152138 A GB 2152138A GB 504526 A GB504526 A GB 504526A
Authority
GB
United Kingdom
Prior art keywords
tubulation
tube
electron
television systems
electrodes
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
GB21521/38A
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.)
Farnsworth Television Inc
Original Assignee
Farnsworth Television 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 Farnsworth Television Inc filed Critical Farnsworth Television Inc
Publication of GB504526A publication Critical patent/GB504526A/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
    • H01J31/26—Image pick-up tubes having an input of visible light and electric output
    • H01J31/42—Image pick-up tubes having an input of visible light and electric output with image screen generating a composite electron beam which is deflected as a whole past a stationary probe to simulate a scanning effect, e.g. Farnsworth pick-up tube
    • H01J31/44—Tubes with image amplification section

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

504,526. Electron multipliers; image dissectors. FARNSWORTH TELEVISION, Inc. July 20, 1938, No. 21521. Convention date, Aug. 17, 1937. [Class 39.(i)] In an image dissector for use in television systems, the composite electron stream from the photo-cathode 2 is moved over the aperture 12 in a dissector tube 6, which contains a number of electron-multiplying electrodes 20, 22, 26, 27, 29, 31 and a collector-grid anode, 30; behind the aperture 12 are arranged smaller apertures 15, 21. Accelerating grids 24, 25 are provided on the electrodes 22,26, 27, 29. An evacuating tubulation 32 is provided at one end of the envelope, and a separator tubulation 10, 11 for the multiplying electrodes and cathode 2 ; the tube 6 is supported by a return press 7 and in a recess 9, from which the tubulation 10 leads. Magnetic focusing and deflecting means are used for the composite stream.
GB21521/38A 1937-08-17 1938-07-20 Image analyzing and dissecting tube for television systems Expired GB504526A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US504526XA 1937-08-17 1937-08-17

Publications (1)

Publication Number Publication Date
GB504526A true GB504526A (en) 1939-04-26

Family

ID=21965336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21521/38A Expired GB504526A (en) 1937-08-17 1938-07-20 Image analyzing and dissecting tube for television systems

Country Status (1)

Country Link
GB (1) GB504526A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202988A (en) * 1987-02-13 1988-10-05 Hamamatsu Photonics Kk Photomultiplier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202988A (en) * 1987-02-13 1988-10-05 Hamamatsu Photonics Kk Photomultiplier
US4825066A (en) * 1987-02-13 1989-04-25 Hamamatsu Photonics Kabushiki Kaisha Photomultiplier with secondary electron shielding means
GB2202988B (en) * 1987-02-13 1991-10-23 Hamamatsu Photonics Kk Photomultiplier

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