US4712879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochromic mirror
Assignee: Magna Donnelly Corp
•
Filing: 1986-04-02
•
Granted: 1987-12-15
•
Expires: 2006-04-02
Abstract
Abstract The specification discloses an electrochromic mirror including a glass substrate, an anodic nickel hydroxide layer 300 to 600 angstroms thick, a solid electrolyte layer 1000 to 1500 angstroms thick, a cathodic tungsten oxide layer 600 to 1200 angstroms thick and a layer of reflective/conductive material.
Inventors
- 👤 Niall R. Lynam
- 👤 Kiok K. Seah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:53
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/15; G02F1/153; G02F1/1533; B; B60; B60R; B60R1/00; B60R1/02; B60R1/08; B60R1/083; B60R1/088; G02F1/1514; G02F1/1523; G02F1/1524
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
119 words
An electrochromic vehicle mirror which can be alternatively darkened or lightened to decrease or increase reflectivity comprising in the order indicated: a glass substrate; a conductive coating thereon; one of an anodic electrochromic layer of nickel hydroxide and a cathodic electrochromic layer of tungsten oxide; a solid electrolyte layer; the other of said cathodic electrochromic layer and said anodic electrochromic layer; and a layer of a reflective/conductive material; where said anodic nickel hydroxide electrochromic layer has a thickness of from about 300 to about 600 angstroms, said solid electrolyte layer has a thickness of from about 1000 to about 1500 angstroms and said cathodic tungsten oxide electrochromic layer has a thickness of from about 600 to about 1200 angstroms.
Claim 2
Dependent Claim
119 words
An electrochromic vehicle mirror which can be alternatively darkened or lightened to decrease or increase reflectivity comprising in the order indicated: a glass substrate; a conductive coating thereon; one of an anodic electrochromic layer of nickel hydroxide and a cathodic electrochromic layer of tungsten oxide; a solid electrolyte layer; the other of said cathodic electrochromic layer and said anodic electrochromic layer; and a layer of a reflective/conductive material; where said anodic nickel hydroxide electrochromic layer has a thickness of from about 300 to about 600 angstroms, said solid electrolyte layer has a thickness of from about 1000 to about 1500 angstroms and said cathodic tungsten oxide electrochromic layer has a thickness of from about 600 to about 1200 angstroms.
Claim 3
Dependent Claim
40 words
The mirror of claim 1 in which said anodic layer has a thickness of about 400 angstroms, said solid electrolyte layer has a thickness of about 1300 angstroms and said cathodic electrochromic layer has a thickness of about 800 angstroms.
Claim 4
Dependent Claim
18 words
The mirror of claim 2 in which said nickel hydroxide layer is deposited before said tungsten oxide layer.
Claim 5
Dependent Claim
19 words
The mirror of claim 3 in which said conductive layer which is adjacent said glass substrate is indium-tin oxide.
Claim 6
Dependent Claim
18 words
The mirror of claim 4 in which said indium-tin oxide layer has a thickness of about 1600 angstroms.
Claim 7
Dependent Claim
13 words
The mirror of claim 5 in which said conductive/reflective layer is metallic aluminum.
Claim 8
Dependent Claim
19 words
The mirror of claim 6 in which said aluminum layer is from about 500 to about 1500 angstroms thick.
Claim 9
Dependent Claim
15 words
The mirror of claim 7 which has no glass layer other than said glass substrate.
Claim 10
Dependent Claim
30 words
The mirror of claim 8 in which each of said nickel hydroxide, tungsten oxide and solid electrolyte layers is sufficiently porous to effect rapid injection, ejection and transmission of ions.
Claim 11
Dependent Claim
34 words
The mirror of claim 9 in which said nickel hydroxide, solid electrolyte and tungsten oxide layers are deposited in partial vacuums in which back pressure is kept as high as possible without disrupting deposition.
Claim 12
Dependent Claim
31 words
The mirror of claim 10 in which said solid electrolyte layer is selected from the group consisting of: tantalum pentoxide, cesium oxide, aluminum oxide, magnesium fluoride, silicon dioxide and mixtures thereof.
Claim 13
Dependent Claim
13 words
The mirror of claim 11 in which said solid electrolyte is tantalum pentoxide.
Claim 14
Dependent Claim
18 words
The mirror of claim 1 in which said nickel hydroxide layer is deposited before said tungsten oxide layer.
Claim 15
Dependent Claim
30 words
The mirror of claim 13 in which each of said nickel hydroxide, tungsten oxide and solid electrolyte layers is sufficiently porous to effect rapid injection, ejection and transmission of ions.
Claim 16
Dependent Claim
34 words
The mirror of claim 14 in which said nickel hydroxide, solid electrolyte and tungsten oxide layers are deposited in partial vacuums in which back pressure is kept as high as possible without disrupting deposition.
Claim 17
Dependent Claim
15 words
The mirror of claim 13 which has no glass layer other than said glass substrate.
Claim 18
Dependent Claim
30 words
The mirror of claim 1 in which each of said nickel hydroxide, tungsten oxide and solid electrolyte layers is sufficiently porous to effect rapid injection, ejection and transmission of ions.
Claim 19
Dependent Claim
34 words
The mirror of claim 17 in which said nickel hydroxide, solid electrolyte and tungsten oxide layers are deposited in partial vacuums in which back pressure is kept as high as possible without disrupting deposition.
Claim 20
Dependent Claim
31 words
The mirror of claim 1 in which said solid electrolyte layer is selected from the group consisting of: tantalum pentoxide, cesium oxide, aluminum oxide, magnesium fluoride, silicon dioxide and mixtures thereof.
Claim 21
Dependent Claim
13 words
The mirror of claim 19 in which said solid electrolyte is tantalum pentoxide.
References Cited (Backward Citations)
US28199A
Cited
US3280701A
Cited
US3453038A
Cited
US3578843A
Cited
US3601614A
Cited
US3712710A
Cited
US3840286A
Cited
US3862798A
Cited
US4309082A
Cited
JPS5310385A
Cited
US4181406A
Cited
US4200361A
Cited
US4161653A
Cited
US4350414A
Cited
US4465339A
Cited
US4433901A
Cited
JPS578524A
Cited
US4348078A
Cited
GB2086601A
Cited
US4482216A
Cited
JPS57172269A
Cited
GB2100875A
Cited
JPS5844422A
Cited
JPS5848028A
Cited
US4512637A
Cited
JPS58114019A
Cited
JPS58114021A
Cited
JPS58114020A
Cited
US4448488A
Cited
JPS58184129A
Cited
US4491390A
Cited
JPS5961820A
Cited
JPS5961821A
Cited
JPH113421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-14 | 1991-06-15 | 1991-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-14 | 1995-06-15 | 1995-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-14 | 1999-06-15 | 1999-12-15 | $7700.00 | Window Closed / Lapsed |