GB713924A - Improvements in or relating to electron-optical image converter tubes and to apparatus incorporating same - Google Patents

Improvements in or relating to electron-optical image converter tubes and to apparatus incorporating same

Info

Publication number
GB713924A
GB713924A GB23837/52A GB2383752A GB713924A GB 713924 A GB713924 A GB 713924A GB 23837/52 A GB23837/52 A GB 23837/52A GB 2383752 A GB2383752 A GB 2383752A GB 713924 A GB713924 A GB 713924A
Authority
GB
United Kingdom
Prior art keywords
cathode
layer
image converter
sept
aluminium
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
GB23837/52A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB713924A publication Critical patent/GB713924A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01J29/36—Photoelectric screens; Charge-storage screens
    • H01J29/38—Photoelectric screens; Charge-storage screens not using charge storage, e.g. photo-emissive screen, extended cathode
    • H01J29/385—Photocathodes comprising a layer which modified the wave length of impinging radiation
    • 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
    • H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
    • H01J31/501—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output with an electrostatic electron optic system

Landscapes

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

Abstract

713,924. Image converters. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 23, 1952 [Sept. 26, 1951], No. 23837/52. Class 39(1) An image converter for converting infra-red and radioscopic images has a wall coating or conductive surface which is insulated from the photo electric cathode and preferably at a positive potential relative thereto. As shown for detecting X-ray images the cathode is a spherical bowl of aluminium 9 carrying a layer 10 of a luminescent material and a photo-electric layer 11. A metal cylinder anode 12 grips the re-entrant part 3 of the tube, its part adjacent the cathode being thimble shaped and formed with a circular bore 14 of small diameter. The luminescent collecting screen 5 extends across the wider part of the anode tube and a contact spring 17 engages an annular metal coating 15 connected to a source of potential e.g. 25 kV. The inner surface of the wall 1 is coated with a conductive layer 20 e.g. of aluminium which extends from slightly beyond the marginal surface 21 of the cathode almost to the narrowed part 2. This layer and the cathode are connected to a variable source 23 of voltage of up to 200 volts.
GB23837/52A 1951-09-26 1952-09-23 Improvements in or relating to electron-optical image converter tubes and to apparatus incorporating same Expired GB713924A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL305865X 1951-09-26

Publications (1)

Publication Number Publication Date
GB713924A true GB713924A (en) 1954-08-18

Family

ID=19783486

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23837/52A Expired GB713924A (en) 1951-09-26 1952-09-23 Improvements in or relating to electron-optical image converter tubes and to apparatus incorporating same

Country Status (7)

Country Link
US (1) US2757293A (en)
BE (1) BE514404A (en)
CH (1) CH305865A (en)
DE (1) DE946168C (en)
FR (1) FR1063614A (en)
GB (1) GB713924A (en)
NL (2) NL81053C (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2966592A (en) * 1956-03-26 1960-12-27 Westinghouse Electric Corp Vacuum-tight windows
US3026437A (en) * 1958-10-20 1962-03-20 Rauland Corp Electron discharge device
NL236037A (en) * 1958-02-14
GB971495A (en) * 1960-10-28 1964-09-30 Mullard Ltd Improvements in and relating to electron-optical image converter tubes
DE1193182B (en) * 1961-01-14 1965-05-20 Telefunken Patent Image converter or image amplifier tubes and processes for their manufacture
US3300668A (en) * 1962-01-24 1967-01-24 Rauland Corp Image converter tube
NL144089C (en) * 1962-12-20 1975-04-15 Philips Nv ELECTRONOPTIC IMAGE AMPLIFIER DEVICE, AS WELL AS ELECTRONOPTIC IMAGE AMPLIFIER TUBE.
US3321659A (en) * 1963-12-12 1967-05-23 Westinghouse Electric Corp Radiation sensitive electron emissive device
US3443104A (en) * 1966-02-17 1969-05-06 Rauland Corp Image intensifier tube with shading compensation
US4173727A (en) * 1966-06-23 1979-11-06 Westinghouse Electric Corp. Electron image device
US3474275A (en) * 1966-09-26 1969-10-21 Rca Corp Image tube having a gating and focusing electrode
US3693018A (en) * 1966-12-27 1972-09-19 Varian Associates X-ray image intensifier tubes having the photo-cathode formed directly on the pick-up screen
US3439114A (en) * 1967-04-17 1969-04-15 Donald A Taylor Fluoroscopic television and cinecamera system
NL177160C (en) * 1977-10-24 1985-08-01 Philips Nv ROENTGEN IMAGE AMPLIFIER TUBE.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE313957C (en) * 1911-06-02 1919-08-04 A.E.G. high vacuum x-ray tube with glow cathode
US2179083A (en) * 1936-08-08 1939-11-07 Aeg Electron image tube
US2306881A (en) * 1938-12-15 1942-12-29 Heimann Walter Cathode ray tube
NL145709B (en) * 1949-03-31 Philips Nv ELECTRICAL SWITCH ELEMENT.
US2523132A (en) * 1949-08-10 1950-09-19 Westinghouse Electric Corp Photosensitive apparatus
BE499549A (en) * 1949-11-25
NL93260C (en) * 1951-09-27

Also Published As

Publication number Publication date
CH305865A (en) 1955-03-15
NL81053C (en)
DE946168C (en) 1956-07-26
FR1063614A (en) 1954-05-05
NL164251B (en)
BE514404A (en)
US2757293A (en) 1956-07-31

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