WO2008090438A3 - Apparatus for light control and method for light control - Google Patents

Apparatus for light control and method for light control Download PDF

Info

Publication number
WO2008090438A3
WO2008090438A3 PCT/IB2008/000129 IB2008000129W WO2008090438A3 WO 2008090438 A3 WO2008090438 A3 WO 2008090438A3 IB 2008000129 W IB2008000129 W IB 2008000129W WO 2008090438 A3 WO2008090438 A3 WO 2008090438A3
Authority
WO
WIPO (PCT)
Prior art keywords
light control
light
control fluid
electric field
user commands
Prior art date
Application number
PCT/IB2008/000129
Other languages
French (fr)
Other versions
WO2008090438A2 (en
WO2008090438B1 (en
Inventor
Ho Keung Tse
Original Assignee
Ho Keung Tse
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 Ho Keung Tse filed Critical Ho Keung Tse
Publication of WO2008090438A2 publication Critical patent/WO2008090438A2/en
Publication of WO2008090438A3 publication Critical patent/WO2008090438A3/en
Publication of WO2008090438B1 publication Critical patent/WO2008090438B1/en

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 
    • G02F1/0121—Operation of devices; Circuit arrangements, not otherwise provided for in this subclass
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
    • E06B2009/2411—Coloured fluid flow for light transmission control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/24—Structural elements or technologies for improving thermal insulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Liquid Crystal (AREA)

Abstract

An apparatus for controlling a plurality of light cells comprises a microcomputer responsive to user commands. The user commands are used to adjust the electric field applied to the light cells containing light control fluid therein and to control the amount of light control fluid inside the light cells, wherein the transparent degree of the light control fluid is dependent on the applied electric field.
PCT/IB2008/000129 2007-01-22 2008-01-22 Apparatus for light control and method for light control WO2008090438A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0701077.0A GB0701077D0 (en) 2007-01-22 2007-01-22 Smart glass
GB0701077.0 2007-01-22

Publications (3)

Publication Number Publication Date
WO2008090438A2 WO2008090438A2 (en) 2008-07-31
WO2008090438A3 true WO2008090438A3 (en) 2008-10-30
WO2008090438B1 WO2008090438B1 (en) 2008-12-11

Family

ID=37846662

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/000129 WO2008090438A2 (en) 2007-01-22 2008-01-22 Apparatus for light control and method for light control

Country Status (2)

Country Link
GB (1) GB0701077D0 (en)
WO (1) WO2008090438A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3023510B1 (en) * 2014-07-11 2016-07-15 Peugeot Citroen Automobiles Sa PAVILION GLAZING FOR A MOTOR VEHICLE HAVING ACTIVE FILM AND PROTECTIVE MEANS TO EXTEND ITS LIFETIME
EP3612384A1 (en) 2017-04-20 2020-02-26 Cardinal Ig Company High performance privacy glazing structures
MX2020000425A (en) 2017-07-13 2020-07-13 Cardinal Ig Co Electrical connection configurations for privacy glazing structures.
EP3707555A1 (en) 2017-11-06 2020-09-16 Cardinal Ig Company Privacy glazing system with discrete electrical driver
US11243421B2 (en) 2018-05-09 2022-02-08 Cardinal Ig Company Electrically controllable privacy glazing with energy recapturing driver
EP3837581B1 (en) 2018-08-17 2023-07-19 Cardinal Ig Company Privacy glazing structure with asymetrical pane offsets for electrical connection configurations
US11474385B1 (en) 2018-12-02 2022-10-18 Cardinal Ig Company Electrically controllable privacy glazing with ultralow power consumption comprising a liquid crystal material having a light transmittance that varies in response to application of an electric field
WO2020163836A1 (en) 2019-02-08 2020-08-13 Cardinal Ig Company Low power driver for privacy glazing
EP3963394A1 (en) 2019-04-29 2022-03-09 Cardinal Ig Company Leakage current detection and control for one or more electrically controllable privacy glazing structures
CN114072726B (en) 2019-04-29 2024-05-31 卡迪纳尔Ig公司 Systems and methods for operating one or more electrically controllable privacy glazing structures
US11175523B2 (en) 2019-04-29 2021-11-16 Cardinal Ig Company Staggered driving electrical control of a plurality of electrically controllable privacy glazing structures

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5621915A (en) * 1979-07-26 1981-02-28 Taitetsuku:Kk Car window
US5105303A (en) * 1988-03-30 1992-04-14 Saab Automobile Aktiebolag Arrangement for a transparent covering element with an electrochromatic layer
DE19719871A1 (en) * 1997-05-12 1998-11-19 Chen Xinfeng Window or sliding roof with window-panes with intervening cavity
JP2001180264A (en) * 1999-12-24 2001-07-03 Asahi Glass Co Ltd Liquid crystal light control window for vehicle
JP2002067690A (en) * 2000-08-31 2002-03-08 Auto Network Gijutsu Kenkyusho:Kk Liquid crystal visor
US6643050B2 (en) * 2000-06-13 2003-11-04 Ppg Industries Ohio, Inc. Colored electrochromic transparent window assemblies
CN2693921Y (en) * 2004-03-11 2005-04-20 龙江 Liquid curtain type glass window
US20050185104A1 (en) * 2002-07-25 2005-08-25 Genewave Optically active glazing

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5621915A (en) * 1979-07-26 1981-02-28 Taitetsuku:Kk Car window
US5105303A (en) * 1988-03-30 1992-04-14 Saab Automobile Aktiebolag Arrangement for a transparent covering element with an electrochromatic layer
DE19719871A1 (en) * 1997-05-12 1998-11-19 Chen Xinfeng Window or sliding roof with window-panes with intervening cavity
JP2001180264A (en) * 1999-12-24 2001-07-03 Asahi Glass Co Ltd Liquid crystal light control window for vehicle
US6643050B2 (en) * 2000-06-13 2003-11-04 Ppg Industries Ohio, Inc. Colored electrochromic transparent window assemblies
JP2002067690A (en) * 2000-08-31 2002-03-08 Auto Network Gijutsu Kenkyusho:Kk Liquid crystal visor
US20050185104A1 (en) * 2002-07-25 2005-08-25 Genewave Optically active glazing
CN2693921Y (en) * 2004-03-11 2005-04-20 龙江 Liquid curtain type glass window

Also Published As

Publication number Publication date
WO2008090438A2 (en) 2008-07-31
WO2008090438B1 (en) 2008-12-11
GB0701077D0 (en) 2007-02-28

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