GB1175597A - Improvements in or relating to Image Intensifiers - Google Patents

Improvements in or relating to Image Intensifiers

Info

Publication number
GB1175597A
GB1175597A GB27917/67A GB2791767A GB1175597A GB 1175597 A GB1175597 A GB 1175597A GB 27917/67 A GB27917/67 A GB 27917/67A GB 2791767 A GB2791767 A GB 2791767A GB 1175597 A GB1175597 A GB 1175597A
Authority
GB
United Kingdom
Prior art keywords
stage
image
intensifier
screen
channel
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
GB27917/67A
Inventor
Brian William Manley
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 GB27917/67A priority Critical patent/GB1175597A/en
Priority to US725045A priority patent/US3491233A/en
Priority to FR1568663D priority patent/FR1568663A/fr
Priority to NL6808351A priority patent/NL6808351A/xx
Priority to AT575768A priority patent/AT281936B/en
Priority to DE19681764514 priority patent/DE1764514A1/en
Publication of GB1175597A publication Critical patent/GB1175597A/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
    • H01J31/506—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output tubes using secondary emission effect
    • H01J31/507—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output tubes using secondary emission effect using a large number of channels, e.g. microchannel plates

Landscapes

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

Abstract

1,175,597. Image tubes. MULLARD Ltd. 16 June, 1967, No. 27917/67. Heading HID. [Also in Division H4] An electronic imaging system comprises a first image intensifier stage of the type employing a first photo-cathode and a first luminescent screen separated by a vacuum space which does not contain any secondary emissive structure, an optical coupling element coupling the first stage to a second image intensifier stage which includes a second photo-cathode, a channel intensifier device and a second luminescent screen on the output side of the channel intensifier. By image intensifiers there is also included image converters in which a change of wavelength is produced. As shown, the first image intensifier stage has a rotationally symmetric electron-optical focusing system of the image inverting type located between photocathode P1 and screen S1, and a fibre optic plate F0, curved to conform to screen Sl, is used to couple the two stages. The second stage is of the " proximity type " in which the photo-cathode P2 is placed very near the channel intensifier I without intermediate electronoptical focusing, and screen S2 is adjacent the channel output electrode E2. The two stages may be within a single envelope, or in separate envelopes in which case the fibre optic plate is split at d. In a second embodiment, Fig. 2 (not shown), the elements P1 and S1 in the first stage are planar and placed very close together without an intermediate focusing system, i.e. " proximity type," to produce a very compact imaging system. If image inversion is required, this may be facilitated by a twisted bundle of optical fibres succeeding screen S2. In a third embodiment, Fig. 3 (not shown), the first stage again is of the " proximity type " and the second stage incorporates an electron-optical focusing system between photo-cathode P2 and the channel input electrode E1. The channel intensifier may, for example, be constructed as described in any of Specifications 1,064,073, 1,064,074, 1,064,075 and 1,090,406.
GB27917/67A 1967-06-16 1967-06-16 Improvements in or relating to Image Intensifiers Expired GB1175597A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB27917/67A GB1175597A (en) 1967-06-16 1967-06-16 Improvements in or relating to Image Intensifiers
US725045A US3491233A (en) 1967-06-16 1968-04-29 Image intensifier devices
FR1568663D FR1568663A (en) 1967-06-16 1968-06-14
NL6808351A NL6808351A (en) 1967-06-16 1968-06-14
AT575768A AT281936B (en) 1967-06-16 1968-06-17 Electronic imaging system
DE19681764514 DE1764514A1 (en) 1967-06-16 1968-06-18 Image intensifier device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27917/67A GB1175597A (en) 1967-06-16 1967-06-16 Improvements in or relating to Image Intensifiers

Publications (1)

Publication Number Publication Date
GB1175597A true GB1175597A (en) 1969-12-23

Family

ID=10267384

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27917/67A Expired GB1175597A (en) 1967-06-16 1967-06-16 Improvements in or relating to Image Intensifiers

Country Status (6)

Country Link
US (1) US3491233A (en)
AT (1) AT281936B (en)
DE (1) DE1764514A1 (en)
FR (1) FR1568663A (en)
GB (1) GB1175597A (en)
NL (1) NL6808351A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1231498A (en) * 1968-08-05 1971-05-12
US3851206A (en) * 1969-06-04 1974-11-26 Hughes Aircraft Co Gain controllable image intensification system
US3748523A (en) * 1971-08-04 1973-07-24 Westinghouse Electric Corp Broad spectral response pickup tube
US3868504A (en) * 1973-09-20 1975-02-25 Us Army Modular biocular eyepiece for thermal image systems
US4051403A (en) * 1976-08-10 1977-09-27 The United States Of America As Represented By The Secretary Of The Army Channel plate multiplier having higher secondary emission coefficient near input
US4142101B1 (en) * 1977-07-20 1991-02-19 Low intensity x-ray and gamma-ray imaging device
DE10014311C2 (en) * 2000-03-23 2003-08-14 Siemens Ag radiation converter
US7498557B2 (en) 2005-09-08 2009-03-03 Applied Materials Israel Ltd. Cascaded image intensifier

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB790416A (en) * 1953-06-05 1958-02-12 Emi Ltd Improvements in or relating to electron discharge devices incorporating electron multipliers
FR1356459A (en) * 1963-02-15 1964-03-27 Csf Non-linear response luminance amplifier
US3369125A (en) * 1963-09-09 1968-02-13 Mcdonnell Aircraft Corp Optical fiber electroluminescent-photoconductive image intensifier
US3356851A (en) * 1963-10-22 1967-12-05 Picker X Ray Corp Division Inc Image intensifier tube with separable optical coupler
US3374380A (en) * 1965-11-10 1968-03-19 Bendix Corp Apparatus for suppression of ion feedback in electron multipliers

Also Published As

Publication number Publication date
DE1764514A1 (en) 1971-08-05
US3491233A (en) 1970-01-20
FR1568663A (en) 1969-05-23
AT281936B (en) 1970-06-10
NL6808351A (en) 1968-12-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee