GB1481814A - Image intensifier tube device - Google Patents

Image intensifier tube device

Info

Publication number
GB1481814A
GB1481814A GB47994/74A GB4799474A GB1481814A GB 1481814 A GB1481814 A GB 1481814A GB 47994/74 A GB47994/74 A GB 47994/74A GB 4799474 A GB4799474 A GB 4799474A GB 1481814 A GB1481814 A GB 1481814A
Authority
GB
United Kingdom
Prior art keywords
layer
rim
flange
sudden
image intensifier
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
GB47994/74A
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.)
Optische Industrie de Oude Delft NV
Original Assignee
Optische Industrie de Oude Delft NV
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 Optische Industrie de Oude Delft NV filed Critical Optische Industrie de Oude Delft NV
Publication of GB1481814A publication Critical patent/GB1481814A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00Cathode ray tubes; Electron beam tubes
    • H01J31/08Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/50Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
    • H01J31/501Image-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)

Abstract

1481814 Image intensifier tubes OPTISCHE INDUSTRIE DE OUDE DELFT NV 6 Nov 1974 [16 Nov 1973] 47994/74 Heading HID An image intensifier device includes one or more intensifier tubes comprising photosensitive electron emitter layer 13, electrically conductive rim 14, focussing means including flange 3 frit sealed to window 1 (e.g. fibre optic type) and connected to electrically conductive cylindrical member 5, and vaporized layer 18 between rim 14 and the flange 3-member 5 assembly of high R and low C so that upon sudden increase in the incident intensity which may cause anode burnout, the voltage difference between the above members causes defocussing and/or deflection of the electrons. Operation at low light levels, invisible to visible conversion, and sudden radiation increases due to shell explosions are disclosed. Layer 18 may extend around all or part of rim 14. Resistive layer 18 may be combined with external resistive means, and may have a non-linear characteristic so that for current increases up to about ten times, the volt drop does not exceed a few volts, whereas for currents >ten times, the resistance correspondingly increases. The assembly connected to the negative terminal of the voltage source, may be in two sections mutually insulated, layer 18 being included in only one, a sudden current increase resulting also in lateral beam deflection. Current, resistance, capacitance and voltage values are exemplified. In Fig. I (not shown), flange 10 is frit sealed to fibre optic window 12 and phosphor layer 15 is aluminized.
GB47994/74A 1973-11-16 1974-11-06 Image intensifier tube device Expired GB1481814A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NLAANVRAGE7315716,A NL175357C (en) 1973-11-16 1973-11-16 IMAGE AMPLIFIER TUBE.

Publications (1)

Publication Number Publication Date
GB1481814A true GB1481814A (en) 1977-08-03

Family

ID=19820021

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47994/74A Expired GB1481814A (en) 1973-11-16 1974-11-06 Image intensifier tube device

Country Status (14)

Country Link
US (2) US3916240A (en)
JP (1) JPS53263B2 (en)
BE (1) BE822183A (en)
CA (1) CA1005850A (en)
DE (1) DE2452850C3 (en)
FR (1) FR2251908B1 (en)
GB (1) GB1481814A (en)
IL (1) IL45976A (en)
IT (1) IT1024836B (en)
NL (1) NL175357C (en)
SE (1) SE392364B (en)
TR (1) TR18630A (en)
YU (1) YU39529B (en)
ZA (1) ZA746803B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2461262B2 (en) * 1974-12-23 1978-09-14 Siemens Ag, 1000 Berlin Und 8000 Muenchen X-ray image intensifier tube
US4087683A (en) * 1975-08-29 1978-05-02 Licentia Patent-Verwaltungs-G.M.B.H. Image intensifying device
DE2538447C2 (en) * 1975-08-29 1982-04-22 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Image intensifier device comprising an image intensifier diode tube
NL7604144A (en) * 1976-04-20 1977-10-24 Optische Ind De Oude Delft Nv METHOD OF SEALING AN IMAGE AMPLIFIER TUBE AND IMAGE AMPLIFIER TUBE OBTAINED ACCORDING TO THIS METHOD.
NL178286C (en) * 1977-03-03 1986-02-17 Philips Nv IMAGE AMPLIFIER TUBE IN A SUSPENSION ENCLOSURE.
NL7708321A (en) * 1977-07-27 1979-01-30 Optische Ind De Oude Delft Nv METHOD FOR MANUFACTURING THE CATHOD OF A DIODE IMAGE AMPLIFIER TUBE, AND A DIODE IMAGE AMPLIFIER TUBE WITH A CATHOD METHOD Manufactured By This Method
NL7804640A (en) * 1978-04-28 1979-10-30 Optische Ind De Oude Delft Nv VACUUM TIGHT, ELECTRICAL CONNECTION FOR THE PHOTO CODE IN AN IMAGE AMPLIFIER TUBE.
US4315184A (en) * 1980-01-22 1982-02-09 Westinghouse Electric Corp. Image tube
NL8903130A (en) * 1989-12-21 1991-07-16 Philips Nv BRIGHTNESS AMPLIFIER TUBE WITH SEAL CONNECTIONS.
US8061556B2 (en) * 2003-12-02 2011-11-22 Restaurant Technology, Inc. Automated freezer component

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280356A (en) * 1958-07-17 1966-10-18 Rca Corp Image tube with truncated conical anode and a plurality of coaxial shield electrodes
US3706903A (en) * 1969-11-03 1972-12-19 Hughes Aircraft Co Sec camera tube and image intensifier protection against excessive light damage
US3708673A (en) * 1971-06-10 1973-01-02 Machlett Lab Inc Image intensifier tube

Also Published As

Publication number Publication date
TR18630A (en) 1977-05-17
DE2452850A1 (en) 1975-06-19
DE2452850C3 (en) 1979-08-30
ZA746803B (en) 1975-11-26
CA1005850A (en) 1977-02-22
YU305074A (en) 1982-02-28
NL175357B (en) 1984-05-16
BE822183A (en) 1975-05-14
IT1024836B (en) 1978-07-20
JPS5081670A (en) 1975-07-02
SE392364B (en) 1977-03-21
IL45976A0 (en) 1975-04-25
AU7498274A (en) 1976-05-06
JPS53263B2 (en) 1978-01-06
FR2251908A1 (en) 1975-06-13
NL175357C (en) 1984-10-16
USRE30596E (en) 1981-04-28
DE2452850B2 (en) 1977-11-03
FR2251908B1 (en) 1979-02-23
US3916240A (en) 1975-10-28
YU39529B (en) 1984-12-31
IL45976A (en) 1977-06-30
NL7315716A (en) 1975-05-21

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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