JPS5755040A - Image intensifier device - Google Patents

Image intensifier device

Info

Publication number
JPS5755040A
JPS5755040A JP13096980A JP13096980A JPS5755040A JP S5755040 A JPS5755040 A JP S5755040A JP 13096980 A JP13096980 A JP 13096980A JP 13096980 A JP13096980 A JP 13096980A JP S5755040 A JPS5755040 A JP S5755040A
Authority
JP
Japan
Prior art keywords
controlled
photoconductive device
image intensifier
resistivity
transistor
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.)
Granted
Application number
JP13096980A
Other languages
Japanese (ja)
Other versions
JPS6329781B2 (en
Inventor
Mitsuhiro Shimada
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.)
HAMAMATSU TELEVISION KK
Hamamatsu TV Co Ltd
Original Assignee
HAMAMATSU TELEVISION KK
Hamamatsu TV Co 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 HAMAMATSU TELEVISION KK, Hamamatsu TV Co Ltd filed Critical HAMAMATSU TELEVISION KK
Priority to JP13096980A priority Critical patent/JPS5755040A/en
Publication of JPS5755040A publication Critical patent/JPS5755040A/en
Publication of JPS6329781B2 publication Critical patent/JPS6329781B2/ja
Granted 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

Landscapes

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

Abstract

PURPOSE:To automatically adjust the brightness of a phosphor screen to a specified optimum value by connecting a secondary electron multiplier and a constant voltage source through a photoconductive device and controlling the resistivity of the photoconductive device. CONSTITUTION:The current applied on the phosphor screen 3 of an image intensifier is smoothed by a smoothing circuit 30 and is compared with the reference voltage by a comparator 40. Then an output which corresponds to its difference is sent to a transistor 53 and its continuity is controlled. Besides, the light quantity of a neon lamp 52 is controlled by the transistor 53. The resistivity of a photoconductive device 99 is controlled by this light quantity and the voltage applied to a secondary electron multiplier 80 is controlled.
JP13096980A 1980-09-19 1980-09-19 Image intensifier device Granted JPS5755040A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13096980A JPS5755040A (en) 1980-09-19 1980-09-19 Image intensifier device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13096980A JPS5755040A (en) 1980-09-19 1980-09-19 Image intensifier device

Publications (2)

Publication Number Publication Date
JPS5755040A true JPS5755040A (en) 1982-04-01
JPS6329781B2 JPS6329781B2 (en) 1988-06-15

Family

ID=15046839

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13096980A Granted JPS5755040A (en) 1980-09-19 1980-09-19 Image intensifier device

Country Status (1)

Country Link
JP (1) JPS5755040A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59216499A (en) * 1983-05-20 1984-12-06 Hitachi Ltd Field circuit protecting unit for rotary electric machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59216499A (en) * 1983-05-20 1984-12-06 Hitachi Ltd Field circuit protecting unit for rotary electric machine
JPH057957B2 (en) * 1983-05-20 1993-01-29 Hitachi Ltd

Also Published As

Publication number Publication date
JPS6329781B2 (en) 1988-06-15

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