JPS57186734A - Variable focal length lens - Google Patents

Variable focal length lens

Info

Publication number
JPS57186734A
JPS57186734A JP7123181A JP7123181A JPS57186734A JP S57186734 A JPS57186734 A JP S57186734A JP 7123181 A JP7123181 A JP 7123181A JP 7123181 A JP7123181 A JP 7123181A JP S57186734 A JPS57186734 A JP S57186734A
Authority
JP
Japan
Prior art keywords
lead wires
transparent
crystal
insulating layer
electrodes
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
JP7123181A
Other languages
Japanese (ja)
Inventor
Yoshibumi Nishimoto
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP7123181A priority Critical patent/JPS57186734A/en
Priority to US06/359,034 priority patent/US4466703A/en
Priority to DE19823210629 priority patent/DE3210629A1/en
Publication of JPS57186734A publication Critical patent/JPS57186734A/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

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 conquer difficulty in leading out a lead wire by providing a transparent insulating layer on the surface of electrooptic crystal provided with transparent electrodes, and then providing the lead wire on it. CONSTITUTION:On one surface of electrooptic crystal 1, annular transparent electrodes 21-2n are provided and over the other entire surface, a grounded transparent electrode 4 is provided. The crystal surface on the side of the transparent electrodes 21-2n is further covered with a transparent insulating layer 9, on which lead wires are provided. Those lead wires and annular transparent electrodes are grounded correspondingly through holes made in the transparent insulating layer. This constitution decreases the intensity of an electric field in the crystal, depending upon the lead wires, by the thickness of the insulator layer to reduce the disorder of electric field distribution due to the lead wires, and also prevents the crossing and interference of the lead wires and electrodes with regard to an electrode pattern in an optional shape.
JP7123181A 1981-03-24 1981-05-12 Variable focal length lens Pending JPS57186734A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP7123181A JPS57186734A (en) 1981-05-12 1981-05-12 Variable focal length lens
US06/359,034 US4466703A (en) 1981-03-24 1982-03-17 Variable-focal-length lens using an electrooptic effect
DE19823210629 DE3210629A1 (en) 1981-03-24 1982-03-23 Lens having a variable focal length

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7123181A JPS57186734A (en) 1981-05-12 1981-05-12 Variable focal length lens

Publications (1)

Publication Number Publication Date
JPS57186734A true JPS57186734A (en) 1982-11-17

Family

ID=13454703

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7123181A Pending JPS57186734A (en) 1981-03-24 1981-05-12 Variable focal length lens

Country Status (1)

Country Link
JP (1) JPS57186734A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001194636A (en) * 2000-01-14 2001-07-19 Minolta Co Ltd Focal position variable space modulation device
JP2001194635A (en) * 2000-01-14 2001-07-19 Minolta Co Ltd Focal position variable space modulation device
JP2003295153A (en) * 2002-01-31 2003-10-15 Citizen Watch Co Ltd Optical deflection apparatus and optical deflection method
JP2008134652A (en) * 2002-01-31 2008-06-12 Citizen Holdings Co Ltd Optical deflection apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4946442A (en) * 1972-09-06 1974-05-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4946442A (en) * 1972-09-06 1974-05-04

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001194636A (en) * 2000-01-14 2001-07-19 Minolta Co Ltd Focal position variable space modulation device
JP2001194635A (en) * 2000-01-14 2001-07-19 Minolta Co Ltd Focal position variable space modulation device
JP2003295153A (en) * 2002-01-31 2003-10-15 Citizen Watch Co Ltd Optical deflection apparatus and optical deflection method
JP2008134652A (en) * 2002-01-31 2008-06-12 Citizen Holdings Co Ltd Optical deflection apparatus

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