GB1064074A - Improvements in or relating to image intensifiers - Google Patents

Improvements in or relating to image intensifiers

Info

Publication number
GB1064074A
GB1064074A GB13205/63A GB1320563A GB1064074A GB 1064074 A GB1064074 A GB 1064074A GB 13205/63 A GB13205/63 A GB 13205/63A GB 1320563 A GB1320563 A GB 1320563A GB 1064074 A GB1064074 A GB 1064074A
Authority
GB
United Kingdom
Prior art keywords
matrix
conductive
channels
tubes
ducts
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
GB13205/63A
Inventor
Brian William Manley
Derek Washington
John Adams
Michael Brannen
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 Components Ltd
Original Assignee
Mullard 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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB13205/63A priority Critical patent/GB1064074A/en
Priority to AT270764A priority patent/AT245639B/en
Priority to NL646403378A priority patent/NL139214B/en
Priority to DEN24690A priority patent/DE1219132B/en
Priority to FR969389A priority patent/FR1390636A/en
Priority to US359855A priority patent/US3260876A/en
Publication of GB1064074A publication Critical patent/GB1064074A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/04—Electron multipliers
    • H01J43/06—Electrode arrangements
    • H01J43/18—Electrode arrangements using essentially more than one dynode
    • H01J43/24—Dynodes having potential gradient along their surfaces
    • 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
    • H01J29/023—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof secondary-electron emitting electrode arrangements

Landscapes

  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

1,064,074. Electron multipliers; cathode-ray tubes. MULLARD Ltd. Dec. 6, 1963, No. 13205/63. Heading HID. In an electron-image intensifier device comprising a matrix of elongated channels C, Fig. 1 (not shown), having resistive and secondary emissive surfaces extending between input and output conductive faces E 1 , E 2 of the matrix, a conductive collimating lens duct L, Fig. 3, is provided as a continuation of each channel at its output end, the ducts being electrically connected to, or forming part of, the output electrode E 2 . The lens ducts L limit the spread of the elemental beams emerging from the matrix channels during their passage to the target S, and are preferably of aluminium which has a secondary emission coefficient which is not greater than unity. The matrix may be manufactured as described in Specifications 1,064,072 and 1,064,075, the conductive coatings L, E 2 being formed together by evaporation at an angle from a source which is moved round the axis of the matrix. The device may be used in light and X-ray image intensifiers, cathoderay display tubes or image orthicon camera tubes. The faces of the matrix may be curved or planar and the axes of the channels may be at an angle to the normal as described in Specification 1,064,073. The matrix material may also be described in this Specification. Reference has been directed by the Comptroller to Specification 950,640.
GB13205/63A 1963-04-03 1963-04-03 Improvements in or relating to image intensifiers Expired GB1064074A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB13205/63A GB1064074A (en) 1963-04-03 1963-04-03 Improvements in or relating to image intensifiers
AT270764A AT245639B (en) 1963-04-03 1964-03-27 Cathode ray tube with electron flow enhanced by secondary emission for displaying images
NL646403378A NL139214B (en) 1963-04-03 1964-03-28 ELECTRON BEAM TUBE WITH SECONDARY EMISSION AMPLIFIED ELECTRON CURRENT FOR DISPLAYING IMAGES.
DEN24690A DE1219132B (en) 1963-04-03 1964-03-28 Electron beam tube with a secondary electron multiplier arranged between the electron source and the fluorescent screen
FR969389A FR1390636A (en) 1963-04-03 1964-04-01 Cathode ray tube, electron current intensified by secondary emission, for image reproduction
US359855A US3260876A (en) 1963-04-03 1964-04-15 Image intensifier secondary emissive matrix internally coated to form a converging lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB13205/63A GB1064074A (en) 1963-04-03 1963-04-03 Improvements in or relating to image intensifiers

Publications (1)

Publication Number Publication Date
GB1064074A true GB1064074A (en) 1967-04-05

Family

ID=10018746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13205/63A Expired GB1064074A (en) 1963-04-03 1963-04-03 Improvements in or relating to image intensifiers

Country Status (5)

Country Link
US (1) US3260876A (en)
AT (1) AT245639B (en)
DE (1) DE1219132B (en)
GB (1) GB1064074A (en)
NL (1) NL139214B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4893218A (en) * 1972-03-10 1973-12-03
DE2418199A1 (en) * 1973-04-19 1974-10-24 Philips Nv ELECTRON MULTIPLE
JPS52142322U (en) * 1977-04-11 1977-10-28

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400291A (en) * 1964-08-28 1968-09-03 Sheldon Edward Emanuel Image intensifying tubes provided with an array of electron multiplying members
DE1489869C3 (en) * 1965-03-26 1973-11-29 Heimann Gmbh, 6200 Wiesbaden-Dotzheim Arrangement to reduce or suppress the pincushion Ver drawing and the image field curvature in the image by means of electric electron lenses
US3437780A (en) * 1965-05-24 1969-04-08 Us Navy Device for measuring and equalizing the gain characteristics of channel image intensifier arrays
US3461332A (en) * 1965-11-26 1969-08-12 Edward E Sheldon Vacuum tubes with a curved electron image intensifying device
US3449582A (en) * 1966-02-02 1969-06-10 Westinghouse Electric Corp Electron multiplier device having an electrically insulating secondary emission control surface
GB1164894A (en) * 1967-03-29 1969-09-24 Mullard Ltd Improvements in or relating to Image Intensifier Devices
US3863094A (en) * 1969-04-08 1975-01-28 Itt Image intensifier and method of making an electron multiplier therefor
US3922577A (en) * 1971-11-15 1975-11-25 Itt Channel plate electron multiplier adjacent color dot screen
GB1452554A (en) * 1974-05-07 1976-10-13 Mullard Ltd Electron beam devices incorporating electron multipliers
AU614796B2 (en) * 1987-09-28 1991-09-12 William M. Sackinger Electrical device for conversion of molecular weights
US5141715A (en) * 1991-04-09 1992-08-25 University Of Alaska Electrical device for conversion of molecular weights using dynodes
US5268612A (en) * 1991-07-01 1993-12-07 Intevac, Inc. Feedback limited microchannel plate
US5359187A (en) * 1993-03-18 1994-10-25 Intevac, Inc. Microchannel plate with coated output electrode to reduce spurious discharges
US5656807A (en) * 1995-09-22 1997-08-12 Packard; Lyle E. 360 degrees surround photon detector/electron multiplier with cylindrical photocathode defining an internal detection chamber

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4893218A (en) * 1972-03-10 1973-12-03
DE2418199A1 (en) * 1973-04-19 1974-10-24 Philips Nv ELECTRON MULTIPLE
JPS52142322U (en) * 1977-04-11 1977-10-28

Also Published As

Publication number Publication date
NL6403378A (en) 1964-10-05
NL139214B (en) 1973-06-15
AT245639B (en) 1966-03-10
US3260876A (en) 1966-07-12
DE1219132B (en) 1966-06-16

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