US5510983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
On-vehicle display
Assignee: Yazaki Corp
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Filing: 1993-11-12
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Granted: 1996-04-23
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Expires: 2013-11-12
Abstract
Abstract An on-vehicle display used in automotive vehicles for displaying an image projected from within a dashboard of a vehicle. A first reflecting surface on a windshield of a vehicle. The first reflecting surface is at a first angle with the dashboard. A second reflecting surface on a reflector is mounted in the proximity to a lower end portion of the windshield. The second reflecting surface is at a lower position than the first reflecting surface and at a second angle with the dashboard. A vehicle speed sensor for outputting a vehicle speed signal indicative of said vehicle speed to said controller. A controller guides the image projected from within the dashboard either to the first reflecting surface or to the second reflecting surface depending on a vehicle speed. A photodetector outputs a light intensity signal indicative of an intensity of ambient light in the proximity to the windshield. A controller receives the light intensity signal from the photodetector and guides the image projected from within the dashboard to the second reflecting surface when the light intensity signal is outside a predetermined range.
Inventors
- 👤 Tadashi Iino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:21
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/01; B; B60; B60K; B60K35/00; B60K35/20; B60K35/21; B60K35/23; B60K35/231; B60K35/28; B60K35/29; B60K35/65; B60K35/654; B60K35/80; B60K35/81; G01; G01P; G01P1/00; G01P1/07; G01P1/08; G02B27/0101; G02B2027/0118; G02B2027/012; G02B2027/0127; G02B2027/014; G02B27/0149; G02B2027/0154; G02B27/0179; G02B2027/0183; G02B2027/0185; G02B2027/0187
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
298 words
An on-vehicle display for displaying an image projected from within a dashboard of a vehicle, comprising: a windshield; a first reflecting surface defined by a lower end portion of the inner surface of the windshield, said first reflecting surface being operative to reflect an image projected from within the dashboard into a driver's eyes when the image falls on said first reflecting surface; and a second reflecting surface being fixed with respect to said windshield at a position lower than said first reflecting surface, said second reflecting surface being angularly displaced with respect to said first reflecting surface and being operative to reflect an image projected from within the dashboard into the driver's eyes when the image falls on said second reflecting surface; angularly adjustable image projecting means for projecting an image onto said first reflecting surface or said second reflecting surface, a light sensor; and a controller operative during a predetermined set of light conditions, as determined by said light sensor, to vary the disposition of said image projecting means to direct said image to various positions on said first reflecting surface when said vehicle operates over a higher range of speeds and to direct said image to various positions on said second reflecting surface when said vehicle operates over a range of speeds lower than said higher range of speeds; said controller including means operated in response to said light sensor to restrict the disposition of said image projecting means to direct said image to various positions on said second reflecting surface over the entire range of vehicle speeds when said light conditions are outside of said predetermined set of conditions; wherein the driver views a virtual image of the image projected from within the dashboard behind said first reflecting surface or said second reflecting surface.
Claim 2
Dependent Claim
298 words
An on-vehicle display for displaying an image projected from within a dashboard of a vehicle, comprising: a windshield; a first reflecting surface defined by a lower end portion of the inner surface of the windshield, said first reflecting surface being operative to reflect an image projected from within the dashboard into a driver's eyes when the image falls on said first reflecting surface; and a second reflecting surface being fixed with respect to said windshield at a position lower than said first reflecting surface, said second reflecting surface being angularly displaced with respect to said first reflecting surface and being operative to reflect an image projected from within the dashboard into the driver's eyes when the image falls on said second reflecting surface; angularly adjustable image projecting means for projecting an image onto said first reflecting surface or said second reflecting surface, a light sensor; and a controller operative during a predetermined set of light conditions, as determined by said light sensor, to vary the disposition of said image projecting means to direct said image to various positions on said first reflecting surface when said vehicle operates over a higher range of speeds and to direct said image to various positions on said second reflecting surface when said vehicle operates over a range of speeds lower than said higher range of speeds; said controller including means operated in response to said light sensor to restrict the disposition of said image projecting means to direct said image to various positions on said second reflecting surface over the entire range of vehicle speeds when said light conditions are outside of said predetermined set of conditions; wherein the driver views a virtual image of the image projected from within the dashboard behind said first reflecting surface or said second reflecting surface.
Claim 3
Dependent Claim
58 words
An on-vehicle display according to claim 1, wherein said controller includes a vehicle speed sensor for outputting a vehicle speed signal indicative of said vehicle speed to said controller so that said controller guides the image projected from within the dashboard either to said first reflecting surface or to said second reflecting surface depending on a vehicle speed.
Claim 4
Dependent Claim
77 words
An on-vehicle display according to claim 2, wherein said controller controls movement of said image projecting means to guide the image projected from within the dashboard either to said first reflecting surface under a first vehicle operating condition in which the vehicle speed signal is higher than a predetermined value, and to said second reflecting surface under a second vehicle operating condition in which the vehicle speed signal is equal to or lower than the predetermined value.
Claim 5
Dependent Claim
97 words
Anon-vehicle display according to claim 3 in which said light sensor comprises a photodetector for outputting a light intensity signal indicative of an intensity of ambient light coming into the vehicle through the windshield, and said controller receives the light intensity signal from said photodetector and controls the movement of said image projecting means to project the image projected from within the dashboard to said first and second reflecting surfaces when the light intensity signal is within a predetermined range and to only said second reflecting surface when the light intensity signal is outside said predetermined range.
Claim 6
Dependent Claim
49 words
An on-vehicle display according to claim any one of claims 1, 3 and 4 further including a manual switch for manually causing said controller to control the movement of said image projecting means to project the image either onto said first reflecting surface or onto said second reflecting surface.
References Cited (Backward Citations)
US1871877A
Cited
US2641159A
Cited
US3230819A
Cited
US3291906A
Cited
US3274545A
Cited
US4190832A
Cited
JPS60192912A
Cited
US4925272A
Cited
DE4126148A1
Cited
US5321415A
Cited
US5386216A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-04-23 | 1999-10-23 | 2000-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-23 | 2003-10-23 | 2004-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-23 | 2007-10-23 | 2008-04-23 | $7700.00 | Window Closed / Lapsed |