US4635033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display system for automotive vehicle
Assignee: Denso Corp
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Filing: 1985-03-27
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Granted: 1987-01-06
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Expires: 2005-03-27
Abstract
Abstract A display system adapted to a dashboard in a vehicle compartment, the dashboard including an instrument panel and a hood located above the instrument panel and below a front windshield of the vehicle compartment, wherein the instrument panel is provided with a first opening directed toward the driver's seat in the compartment, and the hood is provided with a second opening directed toward the internal surface of the front windshield, and wherein the display system comprises an indicator mounted within the dashboard in such a manner than the display surface of the indicator is opposed to the second opening, a mirror plate arranged within the dashboard and movable between a first position in which the mirror plate reflects visual rays representative of information on the indicator toward the first opening and blocks the visual rays toward the second opening and a second position in which the mirror plate permits the visual rays toward the second opening and blocks the visual rays toward the first opening, and an electric drive mechanism for selectively actuating the mirror plate from the first position to the second position and vice versa.
Inventors
- 👤 Kazuo Inukai
- 👤 Takeshi Haluyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:20
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/01; G02B27/0149; B; B60; B60K; B60K35/00; B60K35/10; B60K35/20; B60K35/21; B60K35/22; B60K37/00; B60Q; B60Q3/00; B60Q3/10; G02B27/0101; B60K2360/00; B60K2360/20; B60K2360/33; B60K2360/334; G02B2027/0154; G02B2027/0156; G02B2027/0165; G02B2027/0169
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
242 words
A display system adapted to be disposed in a dashboard in a vehicle compartment, the dashboard including an instrument panel and a hood located above the instrument panel and below a front windshield of said vehicle compartment, wherein the instrument panel is provided with a first opening directed toward a driver's seat in the vehicle compartment, and the hood is provided with a second opening directed toward an internal surface of the front windshield, said display system comprising: indicator means mounted within said dashboard, for forming an inverted image indicative of display information, a display surface of said indicator means being opposed to the internal surface of the windshield through the second opening; mirror means, arranged within the dashboard and movable between a first position and a second position, for, in the first position: (1) reflecting visual rays representative of the display information on said indicator means before such rays reach the second opening toward the first opening to provide the information as an erected virtual image within a frame of the first opening, and (2) blocking the visual rays propagating toward the second opening and for, in the second position: (a) permitting the visual rays to propagate toward the second opening to provide the information as an erected virtual image on the internal surface of said windshield and (b) blocking the visual rays toward the first opening and means for selectively actuating said mirror means between the first and second positions.
Claim 2
Dependent Claim
242 words
A display system adapted to be disposed in a dashboard in a vehicle compartment, the dashboard including an instrument panel and a hood located above the instrument panel and below a front windshield of said vehicle compartment, wherein the instrument panel is provided with a first opening directed toward a driver's seat in the vehicle compartment, and the hood is provided with a second opening directed toward an internal surface of the front windshield, said display system comprising: indicator means mounted within said dashboard, for forming an inverted image indicative of display information, a display surface of said indicator means being opposed to the internal surface of the windshield through the second opening; mirror means, arranged within the dashboard and movable between a first position and a second position, for, in the first position: (1) reflecting visual rays representative of the display information on said indicator means before such rays reach the second opening toward the first opening to provide the information as an erected virtual image within a frame of the first opening, and (2) blocking the visual rays propagating toward the second opening and for, in the second position: (a) permitting the visual rays to propagate toward the second opening to provide the information as an erected virtual image on the internal surface of said windshield and (b) blocking the visual rays toward the first opening and means for selectively actuating said mirror means between the first and second positions.
Claim 3
Dependent Claim
100 words
A display system as recited in claim 1, wherein said mirror means is pivoted at an upper end thereof to an inner shoulder of said hood and extends downwardly toward the display surface of said indicator means, and wherein said actuating means comprises a reversible motor mounted within said hood, a speed reduction gearing associated with said motor and operatively connected to the upper end of said mirror means, and an electric drive circuit for switching over the electric power supply to said motor to selectively effect downward and upward movements of said mirror means through said speed reduction gearing.
Claim 4
Dependent Claim
81 words
A display system as recited in claim 1, wherein said mirror means is arranged to be slidably movable to a predetermined inclination angle within said dashboard, and wherein said actuating means comprises a reversible motor mounted within said dashboard, a speed reduction gearing associated with said motor and drivingly connected to said mirror means, and an electric drive circuit for switching over the electric power supply to said motor to selectively effect downward and upward sliding movements of said mirror means.
Claim 5
Dependent Claim
63 words
A display system as recited in claim 1, wherein said actuating means comprises a reversible motor mounted within said dashboard, a speed reduction gearing associated with said motor and drivingly connected to said mirror means, and electric drive means for switching over the electric power supply to said motor to selectively effect movements of said mirror means between the first and second positions.
Claim 6
Dependent Claim
34 words
A display system as recited in claim 4, wherein said electric drive circuit includes a manually operable selector switch mounted on said instrument panel for switching over the electric power supply to said motor.
Claim 7
Dependent Claim
26 words
A display system as recited in claim 5, wherein said selector switch is in the form of a push button switch mounted on said instrument panel.
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) | 1990-01-05 | 1990-07-07 | 1991-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-05 | 1994-07-07 | 1995-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-05 | 1998-07-07 | 1999-01-06 | $7700.00 | Window Closed / Lapsed |