US5066102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combiner for head-up display and glass with durable reflective coating
Assignee: AGC Inc
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Filing: 1990-10-09
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Granted: 1991-11-19
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Expires: 2010-10-09
Abstract
Abstract Disclosed herein is a combiner for head-up display, wherein a combiner part having a transparent, reflective coating formed thereon is provided in one part of the surface of a windshield glass, the combiner part having non-selecting reflection property. Also disclosed is a glass with reflective coating of excellent durability, wherein at least one surface of the glass is covered with a reflective coating made up of a composite oxide of Ti, Ta and Si, as the principal component.
Inventors
- 👤 Akira Hirano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:25
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/01; G02B27/0149; G02B27/0101; G02B5/00; G02B5/08; G02B5/0808; G02B2027/0118; G02B2027/0192; G02B2027/0194
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
104 words
A combiner for head-up display comprising a combiner part which comprises a coating formed on a part of a surface of a windshield glass, said combiner part having a difference between a maximum reflectance and a minimum reflectance at the surface of said coating of not more than 5% in a wavelength range of 100 nm within the visible light region, said combiner part having a visible light reflectance, with an incident angle of approximately 0°, in a range of from 9 to 18% and a visible light transmittance of at least 70%, said coating being a composite oxide of Ti, Ta and Si.
Claim 2
Dependent Claim
104 words
A combiner for head-up display comprising a combiner part which comprises a coating formed on a part of a surface of a windshield glass, said combiner part having a difference between a maximum reflectance and a minimum reflectance at the surface of said coating of not more than 5% in a wavelength range of 100 nm within the visible light region, said combiner part having a visible light reflectance, with an incident angle of approximately 0°, in a range of from 9 to 18% and a visible light transmittance of at least 70%, said coating being a composite oxide of Ti, Ta and Si.
Claim 3
Dependent Claim
24 words
The combiner for head-up display according to claim 1, characterized in that said reflective coating has a refractive index of from 1.8 to 2.3.
Claim 4
Dependent Claim
26 words
The combiner for head-up display according to claim 1, characterized in that said reflective coating has an optical film thickness of from 400 to 2,300 Å.
Claim 5
Dependent Claim
19 words
The combiner for head-up display according to claim 1, characterized in that said combiner part has a neutral color.
Claim 6
Dependent Claim
27 words
The combiner for head-up display according to claim 1 4, characterized in that said reflective coating has an optical film thickness of from 400 to 1,500 Å.
Claim 7
Dependent Claim
115 words
The combiner for head-up display according to claim 1, characterized in that said reflective coating has the following composition, provided that the contents of silicon oxide (converted in terms of SiO 2 ), titanium oxide (converted in terms of TiO 2 ), and tantalum oxide (converted in terms of Ta 2 O 5 ) with respect to the total oxide components in the coating are respectively denoted by a, b and c (wt.%): (i) a composition, where 10≦a≦40, and b : c=90 : 10 to 50 : 50; or (ii) a composition, where 40≦a≦50, and b : c=100 : 0 to 50 : 50 (the compositional ratio of b : c=100 : 0 being excluded).
Claim 8
Dependent Claim
30 words
The combiner for head-up display according to claim 6, characterized in that said reflective coating has the composition of 20≦a≦50, and b : c=90 : 10 to 50 : 50.
Claim 9
Dependent Claim
31 words
A glass with reflective coating of excellent durability wherein at least a surface of said glass is covered with a reflective coating of a composite oxide of Ti, Ta, and Si.
Claim 10
Dependent Claim
31 words
A glass with reflective coating of excellent durability wherein at least a surface of said glass is covered with a reflective coating of a composite oxide of Ti, Ta, and Si.
Claim 11
Dependent Claim
118 words
The glass with reflective coating of excellent durability according to claim 8, characterized in that said reflective coating has the following composition, provided that the contents of silicon oxide (converted in terms of SiO 2 ), titanium oxide (converted in terms of TiO 2 ), and tantalum oxide (converted in terms of Ta 2 O 5 ) with respect to the total oxide components in the coating are respectively denoted by a, b and c (wt.%): (i) a composition, where 10≦a≦40, and b : c=90 : 10 to 50 : 50; or (ii) a composition, where 40≦a≦50, and b : c=100 : 0 to 50 : 50 (the compositional ratio of b : c=100 : 0 being excluded).
Claim 12
Dependent Claim
33 words
The glass with reflective coating of excellent durability according to claim 9, characterized in that said reflective coating has the composition of 20≦a≦50, and b : c=90 : 10 to 50 : 50.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-11-18 | 1995-05-20 | 1995-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-18 | 1999-05-20 | 1999-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-18 | 2003-05-20 | 2003-11-19 | $7700.00 | Window Closed / Lapsed |