US4418377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus to prevent reflection of vehicle instrument panel illumination light
Assignee: Nissan Motor Co Ltd
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Filing: 1980-09-09
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Granted: 1983-11-29
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Expires: 2000-09-09
Abstract
Abstract A meter has a polarizing filter so that only light having a substantially horizontal wave motion is emitted therefrom. The meter is positioned beneath a canopy which prevents light from impinging on the vehicle windshield so that polarized light impinges on the side window where reflection thereof is attenuated due to the angle of incidence thereof. A non reflective surface is located adjacent the side window which adds to the attenuation of the reflected light.
Inventors
- 👤 Takeo Tamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:07
CPC Classifications
B; B60; B60Q; B60Q3/00; B60Q3/10; B60Q3/14; B60Q3/60; B60Q3/62; B60Q3/64
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
118 words
In a vehicle having a cabin, the combination of: an instrument panel having a light emitting meter; a windshield mounted forward of and adjacent said instrument panel; a canopy mounted on said instrument panel which shades said meter and blocks the transmission of light from said meter to said windshield; a side window oriented with respect to said meter so that light emitted from said meter impinges on said side window; a polarizing filter adapted to polarize the light emitted from said meter to attenuate the reflection of the light impinging on said side window; and a non reflective surface disposed adjacent said side window for further attenuating the reflection of said light impinging on said side window.
Claim 2
Dependent Claim
118 words
In a vehicle having a cabin, the combination of: an instrument panel having a light emitting meter; a windshield mounted forward of and adjacent said instrument panel; a canopy mounted on said instrument panel which shades said meter and blocks the transmission of light from said meter to said windshield; a side window oriented with respect to said meter so that light emitted from said meter impinges on said side window; a polarizing filter adapted to polarize the light emitted from said meter to attenuate the reflection of the light impinging on said side window; and a non reflective surface disposed adjacent said side window for further attenuating the reflection of said light impinging on said side window.
Claim 3
Dependent Claim
34 words
A combination as claimed in claim 1, wherein said polarizing filter is hingedly mounted to said instrument panel and is adapted to be clipped to the underside of said canopy when not in use.
Claim 4
Dependent Claim
19 words
A combination as claimed in claim 1, wherein said non reflecting surface is integrally formed on said side window.
Claim 5
Dependent Claim
32 words
A combination as claimed in claim 1, wherein said non reflecting surface takes the form of a transparent sheet which is attached to a portion of the surface of said side window.
Claim 6
Dependent Claim
40 words
A combination as claimed in claim 1, wherein said non reflective surface is formed on a transparent plate hingedly mounted adjacent said window and adapted to be take an operative position juxtaposing said side window and a non use position.
Claim 7
Dependent Claim
126 words
In a vehicle, the combination of: an instrument panel having a light emitting meter; said windshield mounted adjacent to said instrument panel; a canopy mounted on said instrument panel between said meter and said windshield; a side window oriented with respect to said meter so that light emitted from said meter impinges on said side window; a polarizing filter adapted to polarize the light emitted from said meter to attenuate the reflection of the light impinging on said side window; and a transparent plate; and a non reflective surface formed on a transparent plate, said plate being mounted adjacent said side window for movement between an operative position in the path of the light impinging on said window, and an inoperative position removed from said path.
Claim 8
Dependent Claim
126 words
In a vehicle, the combination of: an instrument panel having a light emitting meter; said windshield mounted adjacent to said instrument panel; a canopy mounted on said instrument panel between said meter and said windshield; a side window oriented with respect to said meter so that light emitted from said meter impinges on said side window; a polarizing filter adapted to polarize the light emitted from said meter to attenuate the reflection of the light impinging on said side window; and a transparent plate; and a non reflective surface formed on a transparent plate, said plate being mounted adjacent said side window for movement between an operative position in the path of the light impinging on said window, and an inoperative position removed from said path.
Claim 9
Dependent Claim
144 words
In a vehicle having a cabin, the combination of: an instrument panel having a light emitting meter; a windshield mounted forward of and adjacent said instrument panel; a canopy mounted on said instrument panel which shades said meter and blocks the transmission of light from said meter to said windshield; a side window oriented with respect to said meter so that light emitted from said meter impinges on said side window; a polarizing filter adapted to polarize the light emitted from said meter to attenuate the reflection of the light impinging on said side window, and polarizing filter being hingedly mounted to said instrument panel and being adapted to be clipped to the underside of said canopy when not in use; and a non reflective surface disposed adjacent said side window for further attenuating the reflection of said light impinging on said side window.
Claim 10
Dependent Claim
144 words
In a vehicle having a cabin, the combination of: an instrument panel having a light emitting meter; a windshield mounted forward of and adjacent said instrument panel; a canopy mounted on said instrument panel which shades said meter and blocks the transmission of light from said meter to said windshield; a side window oriented with respect to said meter so that light emitted from said meter impinges on said side window; a polarizing filter adapted to polarize the light emitted from said meter to attenuate the reflection of the light impinging on said side window, and polarizing filter being hingedly mounted to said instrument panel and being adapted to be clipped to the underside of said canopy when not in use; and a non reflective surface disposed adjacent said side window for further attenuating the reflection of said light impinging on said side window.
Claim 11
Dependent Claim
174 words
In a vehicle having a cabin, the combination of: an instrument panel having a light emitting meter; a windshield mounted forward of and adjacent said instrument panel; a canopy mounted on said instrument panel which shades said meter and blocks the transmission of light from said meter to said windshield; a side window oriented with respect to said meter so that light emitted from said meter impinges on said side window; a polarizing filter adapted to polarize the light emitted from said meter to attenuate the reflection of the light impinging on said side window, said polarizing filter being hingedly mounted to said instrument panel and being adapted to be clipped to the underside of said canopy when not in use; and a non reflective surface disposed adjacent said side window for further attenuating the reflection of said light impinging on said side window, said non reflective surface being formed on a transparent plate hingedly mounted adjacent said window for movement between a non use position and an operative position juxtaposing said side window.
Claim 12
Dependent Claim
174 words
In a vehicle having a cabin, the combination of: an instrument panel having a light emitting meter; a windshield mounted forward of and adjacent said instrument panel; a canopy mounted on said instrument panel which shades said meter and blocks the transmission of light from said meter to said windshield; a side window oriented with respect to said meter so that light emitted from said meter impinges on said side window; a polarizing filter adapted to polarize the light emitted from said meter to attenuate the reflection of the light impinging on said side window, said polarizing filter being hingedly mounted to said instrument panel and being adapted to be clipped to the underside of said canopy when not in use; and a non reflective surface disposed adjacent said side window for further attenuating the reflection of said light impinging on said side window, said non reflective surface being formed on a transparent plate hingedly mounted adjacent said window for movement between a non use position and an operative position juxtaposing said side window.
Claim 13
Dependent Claim
129 words
In a vehicle having a cabin an instrument panel having a light emitting meter; a windshield mounted forward of and adjacent to said instrument panel; a canopy mounted on said instrument panel which shades said meter and blocks the transmission of light from said meter to said windshield; a side window oriented with respect to said meter so that light emitted from said meter impinges on said side window; a polarizing filter which is non-rotatable about an axis normal to its major surface and which is adapted to polarize the light emitted from said meter to attenuate the reflection of the light impinging on said side window; and a non-reflective surface disposed adjacent said side window for further attenuating the reflection of said light impinging on said side window.
Claim 14
Dependent Claim
129 words
In a vehicle having a cabin an instrument panel having a light emitting meter; a windshield mounted forward of and adjacent to said instrument panel; a canopy mounted on said instrument panel which shades said meter and blocks the transmission of light from said meter to said windshield; a side window oriented with respect to said meter so that light emitted from said meter impinges on said side window; a polarizing filter which is non-rotatable about an axis normal to its major surface and which is adapted to polarize the light emitted from said meter to attenuate the reflection of the light impinging on said side window; and a non-reflective surface disposed adjacent said side window for further attenuating the reflection of said light impinging on said side window.
Claim 15
Dependent Claim
42 words
A vehicle as claimed in claim 9, wherein said polarizing filter is hingedly mounted on said instrument panel so as to be pivotable away from said meter and adapted to be clipped to the underside of said canopy when not in use.
References Cited (Backward Citations)
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Cited
FR1428570A
Cited
GB1239080A
Cited
GB1407279A
Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-28 | 1987-05-30 | 1987-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-28 | 1991-05-30 | 1991-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-28 | 1995-05-30 | 1995-11-29 | $7700.00 | Window Closed / Lapsed |