JPS57161829A - Optical controller - Google Patents

Optical controller

Info

Publication number
JPS57161829A
JPS57161829A JP4770181A JP4770181A JPS57161829A JP S57161829 A JPS57161829 A JP S57161829A JP 4770181 A JP4770181 A JP 4770181A JP 4770181 A JP4770181 A JP 4770181A JP S57161829 A JPS57161829 A JP S57161829A
Authority
JP
Japan
Prior art keywords
light
voltage
power source
width
polarizing plates
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
JP4770181A
Other languages
Japanese (ja)
Inventor
Sunao Sugiyama
Hideto Iwaoka
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Electric Corp
Yokogawa Hokushin Electric Corp
Yokogawa Electric Works 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 Yokogawa Electric Corp, Yokogawa Hokushin Electric Corp, Yokogawa Electric Works Ltd filed Critical Yokogawa Electric Corp
Priority to JP4770181A priority Critical patent/JPS57161829A/en
Publication of JPS57161829A publication Critical patent/JPS57161829A/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 
    • G02F1/03—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 ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
    • G02F1/0305—Constructional arrangements
    • G02F1/0322—Arrangements comprising two or more independently controlled crystals

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

PURPOSE:To achieve selective ON-OFF control over the passing of light at optional positions in some direction, by superposing electrooptical effect elements and polarizing plates successively, and driving those elements in parallel by a common power source. CONSTITUTION:Electrooptical effect elements M1-M3 superposed upon polarizing plates P1-P4 have electrodes EA1-EA3, and EB1-EB3 varying in width in the prescribed direction Y of light to vary the ratio of the widths in the traveling direction X of the light, and are connected to a common power source V in parallel. When the voltage of the power source is zero, the light is transmitted over the entire region, but when the voltage is raised, the light is cut off over the entire region up to some voltage VL; when the voltage reaches the VL, only a part having maximum electrode width transmits the light, and when the voltage is further raised, the position of the transmission of the light moves from a part having wide electrode width to a part having narrow width.
JP4770181A 1981-03-31 1981-03-31 Optical controller Pending JPS57161829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4770181A JPS57161829A (en) 1981-03-31 1981-03-31 Optical controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4770181A JPS57161829A (en) 1981-03-31 1981-03-31 Optical controller

Publications (1)

Publication Number Publication Date
JPS57161829A true JPS57161829A (en) 1982-10-05

Family

ID=12782595

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4770181A Pending JPS57161829A (en) 1981-03-31 1981-03-31 Optical controller

Country Status (1)

Country Link
JP (1) JPS57161829A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS497017A (en) * 1972-05-09 1974-01-22
JPS5492766A (en) * 1977-12-27 1979-07-23 Hughes Aircraft Co Optical filter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS497017A (en) * 1972-05-09 1974-01-22
JPS5492766A (en) * 1977-12-27 1979-07-23 Hughes Aircraft Co Optical filter

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