CA2388872A1 - Reversible electrochemical mirror (rem) state monitoring - Google Patents
Reversible electrochemical mirror (rem) state monitoring Download PDFInfo
- Publication number
- CA2388872A1 CA2388872A1 CA002388872A CA2388872A CA2388872A1 CA 2388872 A1 CA2388872 A1 CA 2388872A1 CA 002388872 A CA002388872 A CA 002388872A CA 2388872 A CA2388872 A CA 2388872A CA 2388872 A1 CA2388872 A1 CA 2388872A1
- Authority
- CA
- Canada
- Prior art keywords
- mirror
- rem
- electrode
- sheet resistance
- reflectance
- 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
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
- G02F1/15—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 an electrochromic effect
- G02F1/1506—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 an electrochromic effect caused by electrodeposition, e.g. electrolytic deposition of an inorganic material on or close to an electrode
-
- 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
- G02F1/15—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 an electrochromic effect
- G02F1/1514—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material
- G02F1/1523—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material comprising inorganic material
- G02F1/1525—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 an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material comprising inorganic material characterised by a particular ion transporting layer, e.g. electrolyte
-
- 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
- G02F1/15—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 an electrochromic effect
- G02F1/163—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
Abstract
Reversible electrochemical mirror (REM) devices typically comprise a conductive oxide mirror electrode (106) that is substantially transparent to radiation of some wavelengths, a counter electrode (110) that may also be substantially transparent, and an electrolyte (112) that contains ions of an electrodepositable metal. A voltage applied between the two electrodes causes electrodeposition of a mirror deposit on the mirror electrode and dissolution of the mirror deposit on the counter electrode, and these processes are reversed when the polarity of the applied voltage is changed. Such REM devices provide precise control over the reflection and transmission of radiation and can be used for a variety of applications, including smart windows and automatically adjusting automotive mirrors.
According to the present invention, measurements of the sheet resistance of the mirror electrode in a REM
device are correlated with the thickness of electrodeposited mirror metal and can be used to monitor the reflectance of the device. Sheet resistance measurements can be performed while the mirror state of the device is being switched if adequate isolation between the measurement and switching circuits is provided. This can be accomplished by use of external resistors or more sophisticated circuitry, or by taking advantage of the relatively high sheet resistance of the mirror electrode itself. Monitoring the reflectance of REM devices according to this invention provides significant cost and performance advantages.
According to the present invention, measurements of the sheet resistance of the mirror electrode in a REM
device are correlated with the thickness of electrodeposited mirror metal and can be used to monitor the reflectance of the device. Sheet resistance measurements can be performed while the mirror state of the device is being switched if adequate isolation between the measurement and switching circuits is provided. This can be accomplished by use of external resistors or more sophisticated circuitry, or by taking advantage of the relatively high sheet resistance of the mirror electrode itself. Monitoring the reflectance of REM devices according to this invention provides significant cost and performance advantages.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/660,865 | 2000-09-13 | ||
US09/660,865 US6301039B1 (en) | 2000-09-13 | 2000-09-13 | Reversible electrochemical mirror (REM) state monitoring |
PCT/US2001/028549 WO2002023259A2 (en) | 2000-09-13 | 2001-09-12 | Reversible electrochemical mirror (rem) state monitoring |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2388872A1 true CA2388872A1 (en) | 2002-03-21 |
CA2388872C CA2388872C (en) | 2003-06-10 |
Family
ID=24651278
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002388872A Expired - Fee Related CA2388872C (en) | 2000-09-13 | 2001-09-12 | Reversible electrochemical mirror (rem) state monitoring |
Country Status (7)
Country | Link |
---|---|
US (1) | US6301039B1 (en) |
EP (1) | EP1354238A2 (en) |
JP (1) | JP2004509374A (en) |
KR (1) | KR100629190B1 (en) |
AU (1) | AU2001292632A1 (en) |
CA (1) | CA2388872C (en) |
WO (1) | WO2002023259A2 (en) |
Families Citing this family (66)
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US5910854A (en) | 1993-02-26 | 1999-06-08 | Donnelly Corporation | Electrochromic polymeric solid films, manufacturing electrochromic devices using such solid films, and processes for making such solid films and devices |
US5668663A (en) | 1994-05-05 | 1997-09-16 | Donnelly Corporation | Electrochromic mirrors and devices |
US6891563B2 (en) * | 1996-05-22 | 2005-05-10 | Donnelly Corporation | Vehicular vision system |
US6861809B2 (en) | 1998-09-18 | 2005-03-01 | Gentex Corporation | Headlamp control to prevent glare |
US8294975B2 (en) | 1997-08-25 | 2012-10-23 | Donnelly Corporation | Automotive rearview mirror assembly |
US6124886A (en) | 1997-08-25 | 2000-09-26 | Donnelly Corporation | Modular rearview mirror assembly |
US6172613B1 (en) | 1998-02-18 | 2001-01-09 | Donnelly Corporation | Rearview mirror assembly incorporating vehicle information display |
US6326613B1 (en) | 1998-01-07 | 2001-12-04 | Donnelly Corporation | Vehicle interior mirror assembly adapted for containing a rain sensor |
US6400491B1 (en) * | 1997-12-19 | 2002-06-04 | Innovative Technology Licensing, Llc | Fast-switching reversible electrochemical mirror (REM) |
US6445287B1 (en) | 2000-02-28 | 2002-09-03 | Donnelly Corporation | Tire inflation assistance monitoring system |
US8288711B2 (en) | 1998-01-07 | 2012-10-16 | Donnelly Corporation | Interior rearview mirror system with forwardly-viewing camera and a control |
US6477464B2 (en) | 2000-03-09 | 2002-11-05 | Donnelly Corporation | Complete mirror-based global-positioning system (GPS) navigation solution |
US6329925B1 (en) | 1999-11-24 | 2001-12-11 | Donnelly Corporation | Rearview mirror assembly with added feature modular display |
US6693517B2 (en) | 2000-04-21 | 2004-02-17 | Donnelly Corporation | Vehicle mirror assembly communicating wirelessly with vehicle accessories and occupants |
FR2791147B1 (en) * | 1999-03-19 | 2002-08-30 | Saint Gobain Vitrage | ELECTROCHEMICAL DEVICE OF THE ELECTROCOMMANDABLE DEVICE TYPE WITH VARIABLE OPTICAL AND / OR ENERGY PROPERTIES |
US7167796B2 (en) | 2000-03-09 | 2007-01-23 | Donnelly Corporation | Vehicle navigation system for use with a telematics system |
WO2001064481A2 (en) | 2000-03-02 | 2001-09-07 | Donnelly Corporation | Video mirror systems incorporating an accessory module |
US7195381B2 (en) | 2001-01-23 | 2007-03-27 | Donnelly Corporation | Vehicle interior LED lighting system |
US7370983B2 (en) | 2000-03-02 | 2008-05-13 | Donnelly Corporation | Interior mirror assembly with display |
US7255451B2 (en) | 2002-09-20 | 2007-08-14 | Donnelly Corporation | Electro-optic mirror cell |
US7581859B2 (en) | 2005-09-14 | 2009-09-01 | Donnelly Corp. | Display device for exterior rearview mirror |
JP4232368B2 (en) * | 2001-11-12 | 2009-03-04 | ソニー株式会社 | Display device and driving method thereof |
US6552843B1 (en) * | 2002-01-31 | 2003-04-22 | Innovative Technology Licensing Llc | Reversible electrodeposition device with ionic liquid electrolyte |
US6918674B2 (en) | 2002-05-03 | 2005-07-19 | Donnelly Corporation | Vehicle rearview mirror system |
AU2003237424A1 (en) | 2002-06-06 | 2003-12-22 | Donnelly Corporation | Interior rearview mirror system with compass |
US7329013B2 (en) | 2002-06-06 | 2008-02-12 | Donnelly Corporation | Interior rearview mirror system with compass |
EP1543358A2 (en) | 2002-09-20 | 2005-06-22 | Donnelly Corporation | Mirror reflective element assembly |
US7310177B2 (en) | 2002-09-20 | 2007-12-18 | Donnelly Corporation | Electro-optic reflective element assembly |
US6721080B1 (en) * | 2002-09-27 | 2004-04-13 | D Morgan Tench | Optimum switching of a reversible electrochemical mirror device |
US7372611B2 (en) * | 2002-09-30 | 2008-05-13 | Gentex Corporation | Vehicular rearview mirror elements and assemblies incorporating these elements |
US6798556B2 (en) * | 2003-01-31 | 2004-09-28 | Rockwell Scientific Licensing, Llc. | Locally-switched reversible electrodeposition optical modulator |
US7289037B2 (en) | 2003-05-19 | 2007-10-30 | Donnelly Corporation | Mirror assembly for vehicle |
TWI292225B (en) * | 2003-07-14 | 2008-01-01 | Fujikura Ltd | Electrolytic composition, and photoelectric conversion element and dye sensitizing solar battery employing the same |
DE102004038916A1 (en) * | 2003-09-03 | 2005-03-31 | Volkswagen Ag | Display device for motor vehicle, includes display element for optically representing information concerning motor vehicle |
US7446924B2 (en) | 2003-10-02 | 2008-11-04 | Donnelly Corporation | Mirror reflective element assembly including electronic component |
US7308341B2 (en) | 2003-10-14 | 2007-12-11 | Donnelly Corporation | Vehicle communication system |
US7615703B2 (en) * | 2004-03-03 | 2009-11-10 | Canon Kabushiki Kaisha | Electrolyte composition, dye-sensitized solar cell and production method thereof |
US7864398B2 (en) | 2004-06-08 | 2011-01-04 | Gentex Corporation | Electro-optical element including metallic films and methods for applying the same |
US7626749B2 (en) | 2005-05-16 | 2009-12-01 | Donnelly Corporation | Vehicle mirror assembly with indicia at reflective element |
US7317566B2 (en) * | 2005-08-29 | 2008-01-08 | Teledyne Licensing, Llc | Electrode with transparent series resistance for uniform switching of optical modulation devices |
CN101535087B (en) | 2005-11-01 | 2013-05-15 | 唐纳利公司 | Interior rearview mirror with display |
US8114262B2 (en) * | 2006-01-11 | 2012-02-14 | Sipix Imaging, Inc. | Thickness distribution control for electroplating |
WO2007079539A1 (en) * | 2006-01-13 | 2007-07-19 | Andrew Finlayson | A transparent window switchable rear vision mirror |
US7688495B2 (en) | 2006-03-03 | 2010-03-30 | Gentex Corporation | Thin-film coatings, electro-optic elements and assemblies incorporating these elements |
US7746534B2 (en) | 2006-12-07 | 2010-06-29 | Gentex Corporation | Thin-film coatings, electro-optic elements and assemblies incorporating these elements |
US8169681B2 (en) | 2006-03-03 | 2012-05-01 | Gentex Corporation | Thin-film coatings, electro-optic elements and assemblies incorporating these elements |
EP2426552A1 (en) | 2006-03-03 | 2012-03-07 | Gentex Corporation | Electro-optic elements incorporating improved thin-film coatings |
US8274729B2 (en) | 2006-03-03 | 2012-09-25 | Gentex Corporation | Thin-film coatings, electro-optic elements and assemblies incorporating these elements |
US8368992B2 (en) | 2006-03-03 | 2013-02-05 | Gentex Corporation | Electro-optical element including IMI coatings |
US9274394B2 (en) | 2007-03-05 | 2016-03-01 | Gentex Corporation | Multi-zone mirrors |
US8649083B2 (en) | 2007-03-05 | 2014-02-11 | Gentex Corporation | Multi-zone mirrors |
US8035881B2 (en) | 2007-03-05 | 2011-10-11 | Gentex Corporation | Multi-zone mirrors |
US10017847B2 (en) | 2007-03-05 | 2018-07-10 | Gentex Corporation | Method and apparatus for ion milling |
WO2008115591A1 (en) * | 2007-03-21 | 2008-09-25 | Ntera, Inc. | Display systems manufactured by co-manufacturing printing processes |
US8693079B2 (en) * | 2008-01-31 | 2014-04-08 | Ajjer, Llc | Sealants and conductive busbars for chromogenic devices |
US8154418B2 (en) | 2008-03-31 | 2012-04-10 | Magna Mirrors Of America, Inc. | Interior rearview mirror system |
KR101096202B1 (en) * | 2008-12-29 | 2011-12-22 | 주식회사 하이닉스반도체 | Switching device with solid electrolyte layer |
JP5530692B2 (en) * | 2009-09-30 | 2014-06-25 | 太陽ホールディングス株式会社 | Electrochromic composition |
WO2012079159A1 (en) * | 2010-12-15 | 2012-06-21 | Switch Materials Inc. | Variable transmittance optical devices |
KR101475628B1 (en) * | 2013-11-22 | 2014-12-22 | 연세대학교 산학협력단 | Bistable Electrochemical Mirrors |
FR3026199A1 (en) * | 2014-09-22 | 2016-03-25 | Commissariat Energie Atomique | ELECTROCHROME DEVICE |
JP6662017B2 (en) * | 2015-12-16 | 2020-03-11 | 株式会社リコー | Electrochromic device and electrochromic light control device |
GB2579505B (en) | 2017-07-20 | 2022-08-17 | Univ Leland Stanford Junior | Dynamic glass and method of formation |
JP7198389B2 (en) * | 2020-08-04 | 2022-12-28 | 株式会社東芝 | Electrode evaluation method |
US20230306918A1 (en) | 2020-08-05 | 2023-09-28 | Behr-Hella Thermocontrol Gmbh | Device for displaying information, in particular for a vehicle |
WO2022255940A2 (en) * | 2021-06-04 | 2022-12-08 | Agency For Science, Technology And Research | Active liquid infill switchable windows |
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US5023133A (en) * | 1986-12-12 | 1991-06-11 | The Lubrizol Corporation | Acid sensor |
US4812210A (en) * | 1987-10-16 | 1989-03-14 | The United States Department Of Energy | Measuring surfactant concentration in plating solutions |
US5142228A (en) * | 1989-04-24 | 1992-08-25 | Corning Incorporated | Method for statically or dynamically monitoring the thickness of electrically-conductive coatings on optical fibers |
US5671082A (en) * | 1994-08-25 | 1997-09-23 | The Dow Chemical Company | Single compartment self-erasing electrochromic device |
US6111685A (en) * | 1997-12-19 | 2000-08-29 | Rockwell Science Center, Llc | Reversible electrochemical mirror (REM) with improved electrolytic solution |
US5923456A (en) * | 1997-12-19 | 1999-07-13 | Rockwell International Corporation | Reversible electrochemical mirror |
-
2000
- 2000-09-13 US US09/660,865 patent/US6301039B1/en not_active Expired - Fee Related
-
2001
- 2001-09-12 EP EP01973009A patent/EP1354238A2/en not_active Withdrawn
- 2001-09-12 KR KR1020027006129A patent/KR100629190B1/en not_active IP Right Cessation
- 2001-09-12 JP JP2002527848A patent/JP2004509374A/en active Pending
- 2001-09-12 WO PCT/US2001/028549 patent/WO2002023259A2/en not_active Application Discontinuation
- 2001-09-12 CA CA002388872A patent/CA2388872C/en not_active Expired - Fee Related
- 2001-09-12 AU AU2001292632A patent/AU2001292632A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2002023259A3 (en) | 2003-08-07 |
AU2001292632A1 (en) | 2002-03-26 |
KR20020054341A (en) | 2002-07-06 |
US6301039B1 (en) | 2001-10-09 |
JP2004509374A (en) | 2004-03-25 |
CA2388872C (en) | 2003-06-10 |
EP1354238A2 (en) | 2003-10-22 |
KR100629190B1 (en) | 2006-09-28 |
WO2002023259A2 (en) | 2002-03-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |