GB1030173A - Improvements in or relating to photo-conductive devices - Google Patents

Improvements in or relating to photo-conductive devices

Info

Publication number
GB1030173A
GB1030173A GB2982661A GB2982661A GB1030173A GB 1030173 A GB1030173 A GB 1030173A GB 2982661 A GB2982661 A GB 2982661A GB 2982661 A GB2982661 A GB 2982661A GB 1030173 A GB1030173 A GB 1030173A
Authority
GB
United Kingdom
Prior art keywords
anode
mesh
positive
gun
aug
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
GB2982661A
Inventor
Hugh Bassett Jepson
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB2982661A priority Critical patent/GB1030173A/en
Publication of GB1030173A publication Critical patent/GB1030173A/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
    • H01J31/28—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen
    • H01J31/34—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen having regulation of screen potential at cathode potential, e.g. orthicon
    • H01J31/38—Tubes with photoconductive screen, e.g. vidicon

Abstract

1,030,173. Television pick-up tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. Aug. 10, 1962 [Aug. 18, 1961], No. 29826/61. Heading H1D. In a cathode-ray tube comprising a photoconductive target 3, a mesh electrode 4 facing the target, a tubular anode 5, and an electron gun including at least one anode 8, the mesh 4 and gun anode 8 are connected together within the tube, and are maintained at a positive potential different from that of tubular anode 5. As shown, gun anode 8 is connected to a conductor 11, arranged in a glass tube supported from tubular anode 5 by metal straps, and provided with a spring 12 contacting mesh support ring 10. An improvement in resolution is said to be obtained whether the mesh 4 is positive or negative with respect to wall anode 5, but it is preferably positive thereto so that it constitutes an effective ion trap. Examples of operating potentials are given.
GB2982661A 1961-08-18 1961-08-18 Improvements in or relating to photo-conductive devices Expired GB1030173A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2982661A GB1030173A (en) 1961-08-18 1961-08-18 Improvements in or relating to photo-conductive devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2982661A GB1030173A (en) 1961-08-18 1961-08-18 Improvements in or relating to photo-conductive devices

Publications (1)

Publication Number Publication Date
GB1030173A true GB1030173A (en) 1966-05-18

Family

ID=10297811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2982661A Expired GB1030173A (en) 1961-08-18 1961-08-18 Improvements in or relating to photo-conductive devices

Country Status (1)

Country Link
GB (1) GB1030173A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8441474B2 (en) 2008-06-25 2013-05-14 Aristocrat Technologies Australia Pty Limited Method and system for setting display resolution

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8441474B2 (en) 2008-06-25 2013-05-14 Aristocrat Technologies Australia Pty Limited Method and system for setting display resolution

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