GB749058A - Improvements in or relating to television pick-up tubes - Google Patents

Improvements in or relating to television pick-up tubes

Info

Publication number
GB749058A
GB749058A GB32749/53A GB3274953A GB749058A GB 749058 A GB749058 A GB 749058A GB 32749/53 A GB32749/53 A GB 32749/53A GB 3274953 A GB3274953 A GB 3274953A GB 749058 A GB749058 A GB 749058A
Authority
GB
United Kingdom
Prior art keywords
anode
tube
normal position
signal plate
gun assembly
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
GB32749/53A
Inventor
Frederick Henry Townsend
Stanley Percy Mitchell
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.)
Heraeus Noblelight Analytics Ltd
Original Assignee
Cathodeon 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 Cathodeon Ltd filed Critical Cathodeon Ltd
Priority to GB32749/53A priority Critical patent/GB749058A/en
Priority to FR1089715D priority patent/FR1089715A/en
Priority to US399940A priority patent/US2809315A/en
Publication of GB749058A publication Critical patent/GB749058A/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
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/20—Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel
    • H01J9/233—Manufacture of photoelectric screens or charge-storage screens

Abstract

749,058. Television pick-up tubes. CATHODEON, Ltd. Dec. 22, 1953 [Dec. 24, 1952], No. 32749/52. Class 39 (1). A television pick-up tube 1 has the final anode 7 of the electron gun 6 provided with attached sleeves 12 mounted to slide freely upon rods 13 arranged longitudinally in the tube and fixed to a ring 14 forming part of the gun assembly whereby the anode 7 can be retracted towards the gun end of the tube, Fig. 1, leaving sufficient space for the entry of an evaporating means 9, for photo-conductive or other light-sensitive material, and heater 10 through an aperture 11 in the tube envelope near the transparent signal plate 2, the anode 7 being moved back, after the aperture 11 has been sealed off and evaporation of the light-sensitive material on to the plate 2 has taken place, along the rods 13 to its normal position, Fig. 2. After evaporation and prior to the anode 7 being moved back to normal position the evaporating means 9, 10 is removed and the tube re-sealed and evacuated. The anode 7 is moved back to normal position by magnetic attraction, by sliding a magnet along the outside of the tube or by tapping the tube with target downwards. The anode 7 is held in its normal position by spring catches 16 supported on a member 17 in the gun assembly and engaging in diametrically opposed apertures 15 in the anode 7. The anode 7 has a mesh screen 8 and is provided with a collar 19 slidably engaging over a tubular portion 20 of the gun assembly. The sleeves 12 and rods 13 form an electrical connection between the anode 7 and the gun assembly and this is enhanced by pig-tail connections 18 between the anode 7 and a terminal or terminals within the tube. The photo-conductive material 3 evaporated on to the transparent signal plate 2 can be oxides, such as cuprous oxide, selenium, sulphur or suitable sulphides or selenides. The signal plate 2 is protected by a glass face 4 and between the tube envelope and the glass face 4 there is provided a metal ring, of, for example, material known under the Registered Trade Mark " Kovar," which is in contact with the signal plate 2 to form the output terminal.
GB32749/53A 1952-12-24 1952-12-24 Improvements in or relating to television pick-up tubes Expired GB749058A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB32749/53A GB749058A (en) 1952-12-24 1952-12-24 Improvements in or relating to television pick-up tubes
FR1089715D FR1089715A (en) 1952-12-24 1953-12-18 Improvements to television cameras
US399940A US2809315A (en) 1952-12-24 1953-12-23 Television pick-up tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32749/53A GB749058A (en) 1952-12-24 1952-12-24 Improvements in or relating to television pick-up tubes

Publications (1)

Publication Number Publication Date
GB749058A true GB749058A (en) 1956-05-16

Family

ID=10343446

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32749/53A Expired GB749058A (en) 1952-12-24 1952-12-24 Improvements in or relating to television pick-up tubes

Country Status (3)

Country Link
US (1) US2809315A (en)
FR (1) FR1089715A (en)
GB (1) GB749058A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192485A (en) * 1986-06-03 1988-01-13 Philips Nv Method of manufacturing a photomultiplier tube having a proximity multiplier element

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4097775A (en) * 1955-08-04 1978-06-27 Rca Corporation Infrared sensitive photoconductive pickup tube
US2897389A (en) * 1956-08-24 1959-07-28 Gen Electrodynamics Corp Bulb and bulb spacer for camera tube
BE566011A (en) * 1957-03-25
NL112456C (en) * 1958-01-06
US3138796A (en) * 1958-09-03 1964-06-23 Edward L Withey Three-dimensional display apparatus
US3277328A (en) * 1961-10-23 1966-10-04 Philco Corp Support means for cathode ray tube gun structure
US3584957A (en) * 1965-05-04 1971-06-15 Barnes Eng Co Method for infrared spectroscopy
US3508836A (en) * 1965-05-04 1970-04-28 Barnes Eng Co Cell for infrared spectroscopy

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2185283A (en) * 1936-08-20 1940-01-02 Bell Telephone Labor Inc Cathode ray discharge device
US2283413A (en) * 1940-08-03 1942-05-19 Robert J Cashman Phototube and method of manufacture
US2508856A (en) * 1941-09-12 1950-05-23 Electric & Musieal Ind Ltd Method and structure for processing an electron discharge device
US2374287A (en) * 1941-11-19 1945-04-24 Westinghouse Electric & Mfg Co Photoelectric device
US2393264A (en) * 1942-09-23 1946-01-22 Westinghouse Electric Corp Photoelectric device and the manufacture thereof
US2752519A (en) * 1952-08-27 1956-06-26 John E Ruedy Method and apparatus for use in chemical evaporation processes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192485A (en) * 1986-06-03 1988-01-13 Philips Nv Method of manufacturing a photomultiplier tube having a proximity multiplier element
GB2192485B (en) * 1986-06-03 1990-02-14 Philips Nv Method of manufacturing a photomultiplier tube having a proximity multiplier element

Also Published As

Publication number Publication date
FR1089715A (en) 1955-03-21
US2809315A (en) 1957-10-08

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