JPS57130012A - Noctovision device - Google Patents

Noctovision device

Info

Publication number
JPS57130012A
JPS57130012A JP1644281A JP1644281A JPS57130012A JP S57130012 A JPS57130012 A JP S57130012A JP 1644281 A JP1644281 A JP 1644281A JP 1644281 A JP1644281 A JP 1644281A JP S57130012 A JPS57130012 A JP S57130012A
Authority
JP
Japan
Prior art keywords
liquid crystal
electrode
image
noctovision
performance
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.)
Pending
Application number
JP1644281A
Other languages
Japanese (ja)
Inventor
Toshio Muramatsu
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP1644281A priority Critical patent/JPS57130012A/en
Publication of JPS57130012A publication Critical patent/JPS57130012A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/135—Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or electrically varied

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Liquid Crystal (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

PURPOSE:To assure the high veiwing performance for a noctovision device, by using the liquid crystal. CONSTITUTION:The beams reflected from a target object 1 and the background are formed into an image on a fiber plate surface 7 of an image intensifier 3. This image is transmitted to a photoelectric surface 8 through a fiber 11. The photoelectrons radiated from the surface 8 are accelerated and focused by an electrode 9 and then redoubled by a microchannel secondary electron redoubling tube 10 to hit against a mosaic electrode surface 12. The prscribed voltage of a liquid crystal power supply 13 is applied between the electrode 12 and a transparent electrode 15 which hold the liquid crystal 14 via a switch 21. At the same time, the parallel beams are projected from a liquid crystal projector 17. Thus the observation 6 is performed via an eyepiece 5 to ensure the high viewing performance.
JP1644281A 1981-02-06 1981-02-06 Noctovision device Pending JPS57130012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1644281A JPS57130012A (en) 1981-02-06 1981-02-06 Noctovision device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1644281A JPS57130012A (en) 1981-02-06 1981-02-06 Noctovision device

Publications (1)

Publication Number Publication Date
JPS57130012A true JPS57130012A (en) 1982-08-12

Family

ID=11916345

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1644281A Pending JPS57130012A (en) 1981-02-06 1981-02-06 Noctovision device

Country Status (1)

Country Link
JP (1) JPS57130012A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5751380A (en) * 1995-10-02 1998-05-12 The United States Of America As Represented By The Secretary Of The Navy Optical protection apparatus for use with night vision devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5751380A (en) * 1995-10-02 1998-05-12 The United States Of America As Represented By The Secretary Of The Navy Optical protection apparatus for use with night vision devices

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