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Apparatus for the Control of an Electrochromic Window

Info

Publication number
CA2147551A1
CA2147551A1 CA 2147551 CA2147551A CA2147551A1 CA 2147551 A1 CA2147551 A1 CA 2147551A1 CA 2147551 CA2147551 CA 2147551 CA 2147551 A CA2147551 A CA 2147551A CA 2147551 A1 CA2147551 A1 CA 2147551A1
Authority
CA
Grant status
Application
Patent type
Prior art keywords
electrode
unit
control
electrochromic
window
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.)
Granted
Application number
CA 2147551
Other languages
French (fr)
Other versions
CA2147551C (en )
Inventor
Mino Green
James Hampson
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.)
ITALIANA VETRO - SIV - SpA Soc
Original Assignee
SOCIETA ITALIANA VETRO - SIV - S.P.A.
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

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices 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
    • G02F1/01Devices 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
    • G02F1/15Devices 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 electrochromic elements
    • G02F1/163Operation of electrochromic cells; Circuit arrangements

Abstract

An apparatus for the control of an electrochromic window having a three-electrode structure (2, 8, 5) comprises a comparator (12) to maintain within safe limits the potential difference of the electrode (2) and the reference electrode (5), and a shunt unit (16) to switch off the power supply when the current falls below a lower limit and a unit for controlling the colouring density on the basis of the quantity of charge supplied or the optical density of the colouring.
CA 2147551 1994-04-27 1995-04-21 Apparatus for the control of an electrochromic window Expired - Fee Related CA2147551C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ITRM94A000241 1994-04-27
ITRM940241 1994-04-27

Publications (2)

Publication Number Publication Date
CA2147551A1 true true CA2147551A1 (en) 1995-10-28
CA2147551C CA2147551C (en) 1999-05-11

Family

ID=11402493

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2147551 Expired - Fee Related CA2147551C (en) 1994-04-27 1995-04-21 Apparatus for the control of an electrochromic window

Country Status (4)

Country Link
US (1) US5654736A (en)
JP (1) JP2633218B2 (en)
CA (1) CA2147551C (en)
EP (1) EP0679924A1 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2728696B1 (en) * 1994-12-23 1997-02-14
US5903247A (en) * 1996-07-19 1999-05-11 The Regents Of The University Of California Servo controlled liquid crystal windows
DE19706918A1 (en) * 1997-02-20 1998-08-27 Flachglas Ag A method of operating an electrochromic element
US5978126A (en) * 1998-09-21 1999-11-02 Ppg Industries Ohio, Inc. Apparatus for controlling an electrochromic device
US6405105B1 (en) * 1998-12-17 2002-06-11 International Business Machines Corporation Method means and device for limiting the light penetration through one or more pane in a single viewing port
DE19925335A1 (en) * 1999-06-02 2001-02-08 Daimler Chrysler Aerospace Method for controlling the light transmission of an electrochromic glass
US6567708B1 (en) * 2000-07-25 2003-05-20 Gentex Corporation System to interconnect, link, and control variable transmission windows and variable transmission window constructions
US20030201407A1 (en) * 2002-04-29 2003-10-30 Honeywell International Inc. Transmission sensor
US20040227954A1 (en) * 2003-05-16 2004-11-18 Tong Xie Interferometer based navigation device
US7321359B2 (en) * 2003-07-30 2008-01-22 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Method and device for optical navigation
FR2882828B1 (en) * 2005-03-03 2007-04-06 Saint Gobain method for supplying an electrically controllable device having variable optical and / or variables ENERGY
US7399954B2 (en) * 2005-08-16 2008-07-15 Avago Technologies Ecbu Ip Pte Ltd System and method for an optical navigation device configured to generate navigation information through an optically transparent layer and to have skating functionality
US7990603B2 (en) 2006-06-09 2011-08-02 Gentex Corporation Variable transmission window system
KR101345384B1 (en) * 2007-11-16 2013-12-24 삼성전자주식회사 Method of manufacturing a light guide member and the illumination device and the light guide bujaeui apply them
US7535614B1 (en) 2008-05-27 2009-05-19 Gentex Corporation Electrical window control system and method thereof
US7817326B1 (en) * 2009-04-08 2010-10-19 Stmicroelectronics Design And Application Gmbh Electrochrome element driver
US9405165B2 (en) 2012-03-30 2016-08-02 Gentex Corporation Controller configured for an electro-optic device and method thereof
US9365281B2 (en) 2013-11-19 2016-06-14 Gentex Corporation Reducing condensation in dimmable window systems
US9586669B2 (en) 2013-11-25 2017-03-07 Gentex Corporation Aerospace protective dust cover
CN107000642A (en) 2014-11-07 2017-08-01 金泰克斯公司 Full display mirror actuator
US20160348420A1 (en) * 2015-05-26 2016-12-01 Guardian Industries Corp. Glazing with heat flux sensor and/or methods of making the same

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109B2 (en) * 1976-05-24 1984-01-05 Sharp Kk
JPS5337050A (en) * 1976-09-16 1978-04-05 Sharp Corp Driving system of display device
DE2804111C2 (en) * 1977-01-31 1982-09-09 Sharp K.K., Osaka, Jp
DE2825390C2 (en) * 1977-06-14 1983-01-05 Sharp K.K., Osaka, Jp
JPS56151993A (en) * 1980-04-25 1981-11-25 Seiko Instr & Electronics Electrochromatic display unit driving method
DE3142907A1 (en) * 1981-10-29 1983-05-11 Zeiss Carl Fa Optical layers regulator circuit for electrochromic
DE3142906A1 (en) * 1981-10-29 1983-05-11 Zeiss Carl Fa Gradual charge control layers for electrochromic
DE3142909A1 (en) * 1981-10-29 1983-05-11 Zeiss Carl Fa layers continuous charge control for electrochromic
GB8334587D0 (en) * 1983-12-29 1984-02-01 Ibm Electrochromic matrix display
JPS61267798A (en) * 1985-05-22 1986-11-27 Toyoda Gosei Kk Driving circuit for electrochromic element
DE3886788T2 (en) * 1987-02-27 1994-04-28 Ichikoh Industries Ltd Device for controlling the reflectance of an electrochromic vehicle mirror.
FR2649691B1 (en) * 1989-07-11 1992-10-30 Saint Gobain Vitrage Int electrochromic glazing
JP2506312Y2 (en) * 1989-10-31 1996-08-07 豊田合成株式会社 Electrochromic element
FR2666804B1 (en) * 1990-09-14 1993-05-28 Saint Gobain Vitrage Int electrochromic glazing.
US5220317A (en) * 1990-12-11 1993-06-15 Donnelly Corporation Electrochromic device capable of prolonged coloration
US5424898A (en) * 1991-08-16 1995-06-13 Donnelly Corporation Fault tolerant drive circuit for electrochromic mirror system
FR2690763B1 (en) * 1992-04-30 1995-06-09 Saint Gobain Vitrage Int Method and device for feeding an electrochromic system.
JP2577718Y2 (en) * 1993-03-09 1998-07-30 株式会社村上開明堂 Anti-glare mirror system
JP2798337B2 (en) * 1993-03-29 1998-09-17 株式会社東海理化電機製作所 Control unit of the anti-glare mirror for vehicles

Also Published As

Publication number Publication date Type
US5654736A (en) 1997-08-05 grant
JP2633218B2 (en) 1997-07-23 grant
JPH0867532A (en) 1996-03-12 application
EP0679924A1 (en) 1995-11-02 application
CA2147551C (en) 1999-05-11 grant

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Legal Events

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