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GB1313919A - Image intensifier - Google Patents

Image intensifier

Info

Publication number
GB1313919A
GB1313919A GB1313919DA GB1313919A GB 1313919 A GB1313919 A GB 1313919A GB 1313919D A GB1313919D A GB 1313919DA GB 1313919 A GB1313919 A GB 1313919A
Authority
GB
United Kingdom
Prior art keywords
current
image intensifier
oscillator
derived
control signal
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
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB1313919A publication Critical patent/GB1313919A/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
    • H01J43/30—Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for

Landscapes

  • Transforming Light Signals Into Electric Signals (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

1313919 Automatic control of current STANDARD TELEPHONES & CABLES Ltd 22 June 1971 [29 Sept 1970] 46342/70 Heading G3R In a current control system for an image intensifier, a control signal, derived at least in part from the current monitored in part of the system, is used to regulate the supply to an oscillator, which feeds the image intensifier via a voltage multiplier. In the embodiment shown, a control signal proportional to the current to the oscillator 12, which feeds a three-stage image intensifier 10 via voltage multiplier 11, is derived from the voltage across resistance 14 by amplifiers 15, 16 and compared with an adjustable reference from amplifier 24 by differential amplifier 25, to provide a variable bias to transistor 26 which regulates the supply from battery 13 to oscillator 12. In other embodiments (not shown) the control signal is derived from current in the final stage of the intensifier, or by the products of the voltage across, and current in, the oscillator or said final stage. A flash suppression circuit, Figs. 5 to 7 (not shown) for the image intensifier may be provided. (See Division H2).
GB1313919D 1970-09-29 1970-09-29 Image intensifier Expired GB1313919A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4634270 1970-09-29

Publications (1)

Publication Number Publication Date
GB1313919A true GB1313919A (en) 1973-04-18

Family

ID=10440861

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1313919D Expired GB1313919A (en) 1970-09-29 1970-09-29 Image intensifier

Country Status (6)

Country Link
AU (1) AU463526B2 (en)
CH (1) CH535492A (en)
DE (1) DE2146441A1 (en)
FR (1) FR2108061B1 (en)
GB (1) GB1313919A (en)
NL (1) NL7113334A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7498557B2 (en) 2005-09-08 2009-03-03 Applied Materials Israel Ltd. Cascaded image intensifier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7409242A (en) * 1974-07-09 1976-01-13 Optische Ind De Oude Delft Nv HIGH VOLTAGE GENERATOR CIRCUIT.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7498557B2 (en) 2005-09-08 2009-03-03 Applied Materials Israel Ltd. Cascaded image intensifier

Also Published As

Publication number Publication date
CH535492A (en) 1973-03-31
DE2146441A1 (en) 1972-03-30
FR2108061A1 (en) 1972-05-12
AU463526B2 (en) 1975-07-31
FR2108061B1 (en) 1975-07-18
AU3307771A (en) 1973-03-08
NL7113334A (en) 1972-04-04

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee