Patent US5457564A successfully refreshed from Google Patents.
US5457564A
Expired / Lapsed
US
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Complementary surface confined polymer electrochromic materials, systems, and methods of fabrication therefor
Assignee: MOLECULAR DISPLAY Inc
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Filing: 1993-04-05
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Granted: 1995-10-10
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Expires: 2013-04-05
Abstract
Abstract Electrochromic device having electrode surface confined complementary polymer electrochromic materials, and materials, systems and methods of fabrication therefore. The electrochromic devices employ a polypyrrole-prussian blue composite material on the oxiatively coloring electrode, and a heteroaromatic substance containing at least one quaternized nitrogen atom group on the reductively coloring electrode. A bilayer material consisting substantially of metallic oxide which is conductive in at least one of its redox states and electroplated with a polymer is also disclosed for use as an electrochromic material on either the oxidatively colored or reductively colored electrodes. A method for electrodeposition of viologen polymers at a substantially neutral pH is also disclosed. A method for self-powering and self-modulating electrochromic devices by means of photovoltaic cells is also disclosed.
Inventors
- 👤 Nicholas Leventis
- 👤 Young C. Chung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:15
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/1514; G02F1/1523; G02F1/1525; C; C08; C08G; C08G61/00; C08G61/02; C08G61/10; C08G61/12; C08G61/122; C08G61/123; C08G73/00; C08G73/02; C08G73/026; C08G73/0266; C09; C09K; C09K9/00; C09K9/02; F; F21; F21K; F21K2/00; F21K2/06; F21K2/08; G02F1/1503; G02F1/1516; G02F1/15165; G02F1/1524; G02F1/153; G02F1/155; H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/60; G02F1/13; G02F1/133; G02F1/13306; G02F1/13324; G02F2001/1502; G02F2001/1517; G02F2001/1555; G02F2001/1557; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
95 words
A light-powered and self-adjusting electrochromic device, comprising an at least partially transmissive electrochromic panel and a photovoltaic cell, said photovoltaic cell being arranged to be on the opposite side of said panel from the expected source of light and to face said expected source of light, said photovoltaic cell being electrically connected to said electrochromic panel in such a way that increased electrical output from said photovoltaic cell tends to increase the degree of coloration of said electrochromic panel, thereby tending to decrease the amount of light passing through said panel onto said photovoltaic cell.
Claim 2
Dependent Claim
95 words
A light-powered and self-adjusting electrochromic device, comprising an at least partially transmissive electrochromic panel and a photovoltaic cell, said photovoltaic cell being arranged to be on the opposite side of said panel from the expected source of light and to face said expected source of light, said photovoltaic cell being electrically connected to said electrochromic panel in such a way that increased electrical output from said photovoltaic cell tends to increase the degree of coloration of said electrochromic panel, thereby tending to decrease the amount of light passing through said panel onto said photovoltaic cell.
Claim 3
Dependent Claim
89 words
Self-powering and light-powered electrochromic sunglasses comprising an at least partially transmissive lens including a coating of an electrochromic material thereon and a photovoltaic cell, said photovoltaic cell being disposed on the rear side thereof facing through said lens and being electrically connected to said electrochromic material coating on said lens in such a way that increased electrical output from said photovoltaic cell tends to increase the degree of coloration of said electrochromic material, thereby tending to decrease the amount of light passing through said lens onto said photovoltaic cell.
Claim 4
Dependent Claim
89 words
Self-powering and light-powered electrochromic sunglasses comprising an at least partially transmissive lens including a coating of an electrochromic material thereon and a photovoltaic cell, said photovoltaic cell being disposed on the rear side thereof facing through said lens and being electrically connected to said electrochromic material coating on said lens in such a way that increased electrical output from said photovoltaic cell tends to increase the degree of coloration of said electrochromic material, thereby tending to decrease the amount of light passing through said lens onto said photovoltaic cell.
Claim 5
Dependent Claim
97 words
A self-powering and light-powered electrochromic window comprising an at least partially transmissive panel including a coating of an electrochromic material thereon and a photovoltaic cell, said photovoltaic cell being disposed on the inside of said panel and facing the expected source of light through said panel and being electrically connected to said electrochromic material coating on said panel in such a way that increased electrical output from said photovoltaic cell tends to increase the degree of coloration of said electrochromic material, thereby tending to decrease the amount of light passing through said panel onto said photovoltaic cell.
Claim 6
Dependent Claim
97 words
A self-powering and light-powered electrochromic window comprising an at least partially transmissive panel including a coating of an electrochromic material thereon and a photovoltaic cell, said photovoltaic cell being disposed on the inside of said panel and facing the expected source of light through said panel and being electrically connected to said electrochromic material coating on said panel in such a way that increased electrical output from said photovoltaic cell tends to increase the degree of coloration of said electrochromic material, thereby tending to decrease the amount of light passing through said panel onto said photovoltaic cell.
Claim 7
Dependent Claim
129 words
A self-powering and light-powered electrochromic mirror comprising an at least partially transmissive panel having a coating of an at least partially reflective metallic material, a coating of an electrochromic material and a photovoltaic cell disposed behind at least a portion of said panel and said coating of said electrochromic material, but not concealed by said at least partially reflective metallic material so that it will receive light passing through said electrochromic material coating, said photovoltaic cell being electrically connected to said the electrochromic material coating on said panel in such a way that increased electrical output from said photovoltaic cell tends to increase the degree of coloration of said electrochromic material, thereby tending to decrease the amount of light passing through said electrochromic material and onto said photovoltaic cell.
Claim 8
Dependent Claim
129 words
A self-powering and light-powered electrochromic mirror comprising an at least partially transmissive panel having a coating of an at least partially reflective metallic material, a coating of an electrochromic material and a photovoltaic cell disposed behind at least a portion of said panel and said coating of said electrochromic material, but not concealed by said at least partially reflective metallic material so that it will receive light passing through said electrochromic material coating, said photovoltaic cell being electrically connected to said the electrochromic material coating on said panel in such a way that increased electrical output from said photovoltaic cell tends to increase the degree of coloration of said electrochromic material, thereby tending to decrease the amount of light passing through said electrochromic material and onto said photovoltaic cell.
References Cited (Backward Citations)
US3923645A
Cited
US3999122A
Cited
US4075610A
Cited
US4361497A
Cited
US4830658A
Cited
US4715690A
Cited
US4435048A
Cited
US4350660A
Cited
US4439039A
Cited
US4444892A
Cited
US4498739A
Cited
US4402573A
Cited
US4475036A
Cited
US4488777A
Cited
US4529873A
Cited
US4459035A
Cited
US4473695A
Cited
US4442422A
Cited
US4538158A
Cited
US4596722A
Cited
US4596635A
Cited
US4439280A
Cited
US4461691A
Cited
US4571543A
Cited
US4645307A
Cited
US4560534A
Cited
US4557978A
Cited
US4571029A
Cited
US4644344A
Cited
US4756972A
Cited
US4652090A
Cited
US4728177A
Cited
US4717673A
Cited
US4721601A
Cited
US4756971A
Cited
US4594834A
Cited
US4818352A
Cited
US4842381A
Cited
US4902108A
Cited
US4712879A
Cited
US4839322A
Cited
US4933053A
Cited
US4933052A
Cited
US4973391A
Cited
US5002700A
Cited
US4940315A
Cited
US4970012A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-09 | 1999-04-10 | 1999-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-09 | 2003-04-10 | 2003-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-09 | 2007-04-10 | 2007-10-10 | $7700.00 | Window Closed / Lapsed |