GB1175597A - Improvements in or relating to Image Intensifiers - Google Patents
Improvements in or relating to Image IntensifiersInfo
- 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
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.
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)
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)
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 |
-
1967
- 1967-06-16 GB GB27917/67A patent/GB1175597A/en not_active Expired
-
1968
- 1968-04-29 US US725045A patent/US3491233A/en not_active Expired - Lifetime
- 1968-06-14 FR FR1568663D patent/FR1568663A/fr not_active Expired
- 1968-06-14 NL NL6808351A patent/NL6808351A/xx unknown
- 1968-06-17 AT AT575768A patent/AT281936B/en not_active IP Right Cessation
- 1968-06-18 DE DE19681764514 patent/DE1764514A1/en active Pending
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 |