AU4429489A - Variable density light control apparatus and method - Google Patents

Variable density light control apparatus and method

Info

Publication number
AU4429489A
AU4429489A AU44294/89A AU4429489A AU4429489A AU 4429489 A AU4429489 A AU 4429489A AU 44294/89 A AU44294/89 A AU 44294/89A AU 4429489 A AU4429489 A AU 4429489A AU 4429489 A AU4429489 A AU 4429489A
Authority
AU
Australia
Prior art keywords
control apparatus
light control
variable density
density light
variable
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.)
Abandoned
Application number
AU44294/89A
Inventor
James L. Fergason
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of AU4429489A publication Critical patent/AU4429489A/en
Abandoned legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/54—Additives having no specific mesophase characterised by their chemical composition
    • C09K19/542—Macromolecular compounds
    • C09K19/544—Macromolecular compounds as dispersing or encapsulating medium around the liquid crystal
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/101—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having an electro-optical light valve
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/13725—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on guest-host interaction

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mathematical Physics (AREA)
  • Dispersion Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Polarising Elements (AREA)
AU44294/89A 1988-10-19 1989-10-17 Variable density light control apparatus and method Abandoned AU4429489A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US25995188A 1988-10-19 1988-10-19
US259951 1988-10-19
US26104588A 1988-10-21 1988-10-21
US261045 1988-10-21

Publications (1)

Publication Number Publication Date
AU4429489A true AU4429489A (en) 1990-05-14

Family

ID=26947637

Family Applications (1)

Application Number Title Priority Date Filing Date
AU44294/89A Abandoned AU4429489A (en) 1988-10-19 1989-10-17 Variable density light control apparatus and method

Country Status (5)

Country Link
EP (1) EP0394416A4 (en)
JP (1) JPH03503322A (en)
AU (1) AU4429489A (en)
CA (1) CA2000939A1 (en)
WO (1) WO1990004805A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03192324A (en) * 1989-12-22 1991-08-22 Matsushita Electric Ind Co Ltd Polymer dispersion type liquid crystal display device
JPH063528B2 (en) * 1990-03-16 1994-01-12 富士ゼロックス株式会社 Light modulation display element and display method
ATE169126T1 (en) * 1991-05-01 1998-08-15 Canon Kk LIQUID CRYSTAL DEVICE AND DISPLAY DEVICE AND REPRESENTATION METHOD USING SAME
JPH05303086A (en) * 1991-05-01 1993-11-16 Canon Inc Liquid crystal element and display device and display method using the device
US5486940A (en) * 1993-06-17 1996-01-23 Optical Shields, Inc. Liquid crystal light polarizer and method
US5751388A (en) * 1995-04-07 1998-05-12 Honeywell Inc. High efficiency polarized display
KR19980020098A (en) * 1996-09-05 1998-06-25 손욱 Window using liquid crystal display device
US7110177B2 (en) 2002-01-18 2006-09-19 Nitto Denko Corporation Polarizing film and image display
TWI266907B (en) 2002-07-24 2006-11-21 Nitto Denko Corp Polarizing device, optical thin film using the same, and image display device using the same
JP4614421B2 (en) 2004-03-31 2011-01-19 日東電工株式会社 Manufacturing method of polarizing film
CA2463461C (en) 2004-04-14 2012-06-19 Kenneth R. Fletcher Method of customizing a vehicle with decals, a vehicle decal assembly and a vehicle customized with decals in accordance with the method
JP2021162793A (en) 2020-04-02 2021-10-11 日東電工株式会社 Interior structure of vehicle
JP2021162792A (en) 2020-04-02 2021-10-11 日東電工株式会社 Reflection prevention structure

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2553976A1 (en) * 1974-12-02 1976-06-16 Hermann Budmiger LIGHT PROTECTION FILTER
US4182700A (en) * 1976-07-20 1980-01-08 Benton William J Elastomeric polyurethane film containing dispersed discrete aggregates of liquid crystal and method of making the same
US4202601A (en) * 1978-04-26 1980-05-13 International Telephone And Telegraph Corporation Training aid for use with night vision apparatus
WO1981000463A1 (en) * 1979-07-27 1981-02-19 Minnesota Mining & Mfg Display device with dynamic internal polarizer
US4435047A (en) * 1981-09-16 1984-03-06 Manchester R & D Partnership Encapsulated liquid crystal and method
JPS6046506A (en) * 1983-08-24 1985-03-13 Toray Ind Inc Polarizing film and its production
GB8403092D0 (en) * 1984-02-06 1984-03-07 Gardner H I Polarshade
JP2721497B2 (en) * 1984-03-19 1998-03-04 ケント・ステート・ユニバーシティ Method for producing light modulating substance
DE3650314T2 (en) * 1985-09-17 1995-10-26 Kent State University, Kent, Ohio LIQUID CRYSTALINE, LIGHT-MODULATING MATERIALS.

Also Published As

Publication number Publication date
WO1990004805A1 (en) 1990-05-03
EP0394416A1 (en) 1990-10-31
CA2000939A1 (en) 1990-04-19
JPH03503322A (en) 1991-07-25
EP0394416A4 (en) 1992-07-08

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