Patent US4702955A successfully refreshed from Google Patents.
US4702955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilayer decorative coating
Assignee: Ovonic Synthetic Materials Co Inc
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Filing: 1986-01-27
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Granted: 1987-10-27
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Expires: 2006-01-27
Abstract
Abstract A coated article, for example an architectural transparency, including a vehicular transparency, or a reflecting article, as a decorative article. The article has a substrate, e.g., a substantially transparent or substantially opaque substrate. The substrate has an optical coating on it, that is a coating having a thin film of an oxide of a transition metal, the thin film having a thickness corresponding to a constructively interfering function of a wavelength of interest. The optical coating, having a thin film of a transition metal, enhances the reflectivity of some wavelengths of the visible portion of the electromagnetic spectrum and the reflectivity of other wavelengths of the visible portion of the electromagnetic spectrum.
Inventors
- 👤 David Allred
- 👤 Alan Kadin
- 👤 Purnachandra Pai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:57
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/28; G02B5/285; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265
Claims Analysis
Total Claims: 51
Claim 1
Independent Claim
112 words
A reflecting article comprising a substrate having a coating thereon said coating comprising: a partially oxidized transition metal thin film deposited, on the substrate said transition metal chosen from the group consisting of Group IVB, VB and VIB of the periodic table, the partially oxidized transition metal thin film being oxidized to a thickness to provide substantially constructive interference of a desired band of optical wavelengths, the oxide and metallic portions of the deposited thin film having indices of refraction to provide balanced reflectances at the thin film-air interface and at the transition metal-oxide interface, and the total thickness of the thin film being such to provide an integrated optical transmission coefficient.
Claim 2
Dependent Claim
112 words
A reflecting article comprising a substrate having a coating thereon said coating comprising: a partially oxidized transition metal thin film deposited, on the substrate said transition metal chosen from the group consisting of Group IVB, VB and VIB of the periodic table, the partially oxidized transition metal thin film being oxidized to a thickness to provide substantially constructive interference of a desired band of optical wavelengths, the oxide and metallic portions of the deposited thin film having indices of refraction to provide balanced reflectances at the thin film-air interface and at the transition metal-oxide interface, and the total thickness of the thin film being such to provide an integrated optical transmission coefficient.
Claim 3
Dependent Claim
70 words
The reflecting article of claim 1 wherein the depth of the oxidized portion of the transition metal thin film is from about 420 angstroms to about 2200 angstroms, and wherein the thickness of the unoxidized portion of the partially oxidized, transition metal thin film is less than about 500 angstroms whereby to provide an optical transmission integrated over the visible portion of the electromagnetic spectrum, of at least about 0.001.
Claim 4
Dependent Claim
14 words
The reflecting article of claim 1 wherein the substrate is an organic polymeric material.
Claim 5
Dependent Claim
13 words
The reflecting article of claim 1 wherein the substrate is a metallic substrate.
Claim 6
Dependent Claim
13 words
The reflecting article of claim 1 wherein the transition metal is thermally oxidizable.
Claim 7
Dependent Claim
14 words
The reflecting article of claim 1 wherein the substrate is a substantially transparent substrate.
Claim 8
Dependent Claim
15 words
The reflecting article of claim 6 wherein the reflecting article is a semitransparent reflecting article.
Claim 9
Dependent Claim
13 words
The reflecting article of claim 1 wherein the substrate is a ceramic substate.
Claim 10
Dependent Claim
14 words
The reflecting article of claim 8 wherein the substrate is a substantially transparent glass.
Claim 11
Dependent Claim
13 words
The reflecting article of claim 1 wherein the transistion metal is electrochemically oxidizable.
Claim 12
Dependent Claim
13 words
The reflecting article of claim 10 wherein the transition metal is plasma oxidizable.
Claim 13
Dependent Claim
29 words
The reflecting article of claim 1 wherein the transition metal is chosen from the group consisting of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, and combinations thereof.
Claim 14
Dependent Claim
12 words
The reflecting article of claim 12 wherein the transition metal is niobium.
Claim 15
Dependent Claim
16 words
The coated article of claim 12 wherein the first interface is with a substantially transparent layer.
Claim 16
Dependent Claim
22 words
The coated article of claim 14 wherein the first interface is at a free surface of the oxidized transition metal thin film.
Claim 17
Dependent Claim
12 words
The coated article of claim 15 wherein the coating is substantially transparent.
Claim 18
Dependent Claim
144 words
A coated article having a substrate and a coating thereon comprising: a. a thin film comprising predominantly a Group IB metal; b. a thin film of substantially oxidized transition metal, wherein said transition metal is chosen from the group consisting of Groups IVB, VB and VIB of the Periodic Table; and c. said oxidized transition metal thin film being separated from the substrate by the Group IB metal thin film, whereby the oxidized transition metal thin film forms; i. a first interface on the external surface thereof; and ii. a second interface with the combination of (1) the Group IB metal thin film, and (2) any unoxidized portion of the transition metal on the opposite surface thereof from the first interface the reflectivity of the second interface approaching the reflectivity of the oxidized transition metal thin film Group IB metal thin film second interface.
Claim 19
Dependent Claim
144 words
A coated article having a substrate and a coating thereon comprising: a. a thin film comprising predominantly a Group IB metal; b. a thin film of substantially oxidized transition metal, wherein said transition metal is chosen from the group consisting of Groups IVB, VB and VIB of the Periodic Table; and c. said oxidized transition metal thin film being separated from the substrate by the Group IB metal thin film, whereby the oxidized transition metal thin film forms; i. a first interface on the external surface thereof; and ii. a second interface with the combination of (1) the Group IB metal thin film, and (2) any unoxidized portion of the transition metal on the opposite surface thereof from the first interface the reflectivity of the second interface approaching the reflectivity of the oxidized transition metal thin film Group IB metal thin film second interface.
Claim 20
Dependent Claim
12 words
The coated article of claim 17 wherein the substrate is substantially transparent.
Claim 21
Dependent Claim
12 words
The coated article of claim 17 wherein the article is substantially transparent.
Claim 22
Dependent Claim
22 words
The coated article of claim 17 wherein the oxidized transition metal thin film is from about 420 to about 2200 angstroms thick.
Claim 23
Dependent Claim
13 words
The coated article of claim 17 wherein the transition metal is electrochemically oxidizable.
Claim 24
Dependent Claim
14 words
The coated article of claim 17 wherein the transition metal is a thermally oxidizable.
Claim 25
Dependent Claim
15 words
The coated article of claim 17 wherein the transition metal is deposited by reactive sputtering.
Claim 26
Dependent Claim
13 words
The coated article of claim 17 wherein the transition metal is plasma oxidizable.
Claim 27
Dependent Claim
12 words
The coated article of claim 17 wherein the transition metal is niobium.
Claim 28
Dependent Claim
16 words
The coated article of claim 17 wherein the oxidized transition metal thin film is completely oxidized.
Claim 29
Dependent Claim
47 words
The coated article of claim 17 wherein the oxidized transition metal thin film is partially oxidized, whereby to have an oxidized portion remote from the thin film of the Group IB metal thin film, and a metallic portion in contact with the Group IB metal thin film.
Claim 30
Dependent Claim
13 words
The coated article of claim 17 wherein the coating is a colored coating.
Claim 31
Dependent Claim
14 words
The coated article of claim 28 wherein the colored coating has a high finesse.
Claim 32
Dependent Claim
20 words
The coated article of claim 17 wherein the thin film of the Group IB metal is a substantially transparent film.
Claim 33
Dependent Claim
24 words
The coated article of claim 30 wherein the thin film of the Group IB metal is from about 30 to about 200 angstroms thick.
Claim 34
Dependent Claim
22 words
The coated article of claim 17 wherein the Group IB metal is chosen from the group consisting of Cu, Ag, and Au.
Claim 35
Dependent Claim
13 words
The coated article of claim 32 wherein the Group IB metal is Ag.
Claim 36
Dependent Claim
24 words
The coated article of claim 32 wherein the Group IB metal has an optical absorption edge beyond the visible portion of the electromagentic spectrum.
Claim 37
Dependent Claim
148 words
An architecturally transparent article adapted for use as a window capable of transmitting portions of the visible spectrum and reflecting portions of the visible spectrum, comprising: a. a transparent glass or polymeric substrate; and b. a deposited partially oxidized transition metal thin film deposited thereon, wherein the transition metal film is chosen from the group consisting of Groups IVB, VB and VIB of the Periodic Table, the partially oxidized transition metal thin film being oxidized to a depth to provide substantially constructive interference of the first harmonics of a desired band of optical wavelengths, and destructive interference of other bands of optical wavelengths, the total thickness of the thin film being such to produce an integrated optical transmission coefficient and, the oxide and metallic portions of the deposited thin film having indices of refraction to provide balanced reflectances at the thin film-air interface and at the oxide-metal interface.
Claim 38
Dependent Claim
148 words
An architecturally transparent article adapted for use as a window capable of transmitting portions of the visible spectrum and reflecting portions of the visible spectrum, comprising: a. a transparent glass or polymeric substrate; and b. a deposited partially oxidized transition metal thin film deposited thereon, wherein the transition metal film is chosen from the group consisting of Groups IVB, VB and VIB of the Periodic Table, the partially oxidized transition metal thin film being oxidized to a depth to provide substantially constructive interference of the first harmonics of a desired band of optical wavelengths, and destructive interference of other bands of optical wavelengths, the total thickness of the thin film being such to produce an integrated optical transmission coefficient and, the oxide and metallic portions of the deposited thin film having indices of refraction to provide balanced reflectances at the thin film-air interface and at the oxide-metal interface.
Claim 39
Dependent Claim
71 words
The architecturally transparent article of claim 35 wherein the depth of the oxidized portion of the transition metal thin film is from about 420 Angstroms to about 2200 Angstroms, and wherein the thickness of the metallic portion of the partially oxidized, transition metal thin film is less than about 500 Angstroms whereby to provide an optical transmission integrated over the visible portion of the electromagnetic spectrum, of at least about 0.001.
Claim 40
Dependent Claim
14 words
The architecturally transparent article of claim 35 wherein the transition metal is electrochemically oxidizable.
Claim 41
Dependent Claim
14 words
The architecturally transparent article of claim 35 wherein the transition metal is chemically oxidizable.
Claim 42
Dependent Claim
14 words
The architecturally transparent article of claim 35 wherein the transition metal is plasma oxidizable.
Claim 43
Dependent Claim
13 words
The architecturally transparent article of claim 35 wherein the transition metal is niobium.
Claim 44
Dependent Claim
29 words
The architecturally transparent article of claim 35 further comprising a thin film of a Group IB metal on the transparent substrate below the partially oxidized transition metal thin film.
Claim 45
Dependent Claim
18 words
The architecturally transparent article of claim 41 wherein the Group IB wherein the Group IB metal is Ag.
Claim 46
Dependent Claim
22 words
The architecturally transparent article of claim 41 wherein the thin film of Group IB metal is from 80 to 200 Angstroms thick.
Claim 47
Dependent Claim
140 words
A reflecting article comprising: a. a substrate; and b. a multilayered coating deposited on said substrate, the multilayered coating comprising a plurality of layer pairs, a layer pair comprising: i. a substantially light transmissive thin film layer comprising a metal chosen from the group consisting of transition metals and Group IB metals; and ii. a substantially reflective thin film layer comprising an oxide of a transition metal, wherein said transition metal is chosen from the group consisting of Groups IVB, VB and VIB of the Periodic Table, said oxide layer having a thickness to provide constructive interference of the first harmonic of a desired band of optical wavelengths, and destructive interference of other wavelength bands, and the total thickness of the layer pair beign such as to provide optical transmissivity to a next subjacent layer pair in the multilayer coating.
Claim 48
Dependent Claim
140 words
A reflecting article comprising: a. a substrate; and b. a multilayered coating deposited on said substrate, the multilayered coating comprising a plurality of layer pairs, a layer pair comprising: i. a substantially light transmissive thin film layer comprising a metal chosen from the group consisting of transition metals and Group IB metals; and ii. a substantially reflective thin film layer comprising an oxide of a transition metal, wherein said transition metal is chosen from the group consisting of Groups IVB, VB and VIB of the Periodic Table, said oxide layer having a thickness to provide constructive interference of the first harmonic of a desired band of optical wavelengths, and destructive interference of other wavelength bands, and the total thickness of the layer pair beign such as to provide optical transmissivity to a next subjacent layer pair in the multilayer coating.
Claim 49
Dependent Claim
12 words
The reflecting article of claim 44 wherein the transition metal is niobium.
Claim 50
Dependent Claim
13 words
The reflecting article of claim 44 comprising at least about two layer pairs.
Claim 51
Dependent Claim
13 words
The reflecting article of claim 44 wherein the Group IB metal is Ag.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-10-26 | 1991-04-27 | 1991-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-26 | 1995-04-27 | 1995-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-26 | 1999-04-27 | 1999-10-27 | $7700.00 | Window Closed / Lapsed |