GB1115481A - Improvements in or relating to electron image intensifier tubes - Google Patents

Improvements in or relating to electron image intensifier tubes

Info

Publication number
GB1115481A
GB1115481A GB50663/64A GB5066364A GB1115481A GB 1115481 A GB1115481 A GB 1115481A GB 50663/64 A GB50663/64 A GB 50663/64A GB 5066364 A GB5066364 A GB 5066364A GB 1115481 A GB1115481 A GB 1115481A
Authority
GB
United Kingdom
Prior art keywords
tube
input window
image intensifier
window
casing
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
GB50663/64A
Inventor
James Dwyer Mcgee
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.)
National Research Development Corp UK
Original Assignee
National Research Development Corp UK
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 National Research Development Corp UK filed Critical National Research Development Corp UK
Priority to GB50663/64A priority Critical patent/GB1115481A/en
Priority to US511898A priority patent/US3470380A/en
Publication of GB1115481A publication Critical patent/GB1115481A/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
    • H01J31/50—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)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

1,115,481. Image intensifier tubes; discharging static electricity from envelopes thereof. NATIONAL RESEARCH DEVELOPMENT CORPORATION. 8 Dec., 1965 [12 Dec., 1964], No.50663/64. Headings HID and H1X. An image intensifier tube in which the output window, e.g. a mica Lenard window, is at earth potential while the input window is at high negative potential has the input window provided with a light transparent cover-plate of high resistivity insulating material, e.g. silica, to reduce leakage current and consequent corona discharge at the input window. To further reduce these effects the tube, e.g. of soda glass, may be surrounded by an outer casing of insulating material and the space between tube and casing filled with insulating encapsulating material. In addition, the silica plate may have a marginal coating of metal or graphite, may be surrounded by an opaque projecting mask or hood and may have affixed to it a radio-active foil, e.g. strontium-90, to produce ionization of the air in its immediate neighbourhood. The negative high tension line to the photo-cathode on the input window extends the length of the tube between the tube and the casing.
GB50663/64A 1964-12-12 1964-12-12 Improvements in or relating to electron image intensifier tubes Expired GB1115481A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB50663/64A GB1115481A (en) 1964-12-12 1964-12-12 Improvements in or relating to electron image intensifier tubes
US511898A US3470380A (en) 1964-12-12 1965-12-06 Photoelectronic image detecting devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB50663/64A GB1115481A (en) 1964-12-12 1964-12-12 Improvements in or relating to electron image intensifier tubes

Publications (1)

Publication Number Publication Date
GB1115481A true GB1115481A (en) 1968-05-29

Family

ID=10456856

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50663/64A Expired GB1115481A (en) 1964-12-12 1964-12-12 Improvements in or relating to electron image intensifier tubes

Country Status (2)

Country Link
US (1) US3470380A (en)
GB (1) GB1115481A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3875440A (en) * 1971-11-24 1975-04-01 Electron Physics Ltd Cascade image intensifier tube with independently sealed sections

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2030491A (en) * 1931-03-17 1936-02-11 Abadie Jean-Baptiste Jo Marcel Device for applying luminescent tubes to power transmission lines
US2120916A (en) * 1934-09-22 1938-06-14 Ralph E Bitner Light frequency converter
BE431881A (en) * 1937-12-28 1939-01-31 Thomson Houston improvements to discharge tubes
GB685725A (en) * 1950-07-14 1953-01-07 Albert Victor Marcel Mitzakis Improvements relating to light projection and viewing equipment for turrets of tanks and other vehicles or ships
US2833953A (en) * 1953-04-13 1958-05-06 Machlett Lab Inc High voltage electron tube

Also Published As

Publication number Publication date
US3470380A (en) 1969-09-30

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