Patent US4837551A successfully refreshed from Google Patents.
US4837551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display apparatus for automotive vehicle
Assignee: Yazaki Corp
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Filing: 1988-02-03
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Granted: 1989-06-06
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Expires: 2008-02-03
Abstract
Abstract In a display apparatus for an automotive vehicle including a projector disposed at the ceiling of the automotive vehicle to project display images and a half mirror for reflecting projected display images to the driver, an angular position of the half mirror surface from the lateral direction of the vehicle is automatically adjusted according to vehicle lateral acceleration. Therefore, the driver can appropriately see virtual display images ahead of the half mirror along the driver's eye direction variable according to vehicle lateral acceleration.
Inventors
- 👤 Tadashi Iino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:20
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/01; G01; G01P; G01P1/00; G01P1/07; G01P1/08; G02B27/0149; G02B2027/0154
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
147 words
A display apparatus for an automotive vehicle, comprising: (a) projecting means, disposed in a passenger compartment of the automotive vehicle, for projecting display images; (b) half mirror reflecting means for reflecting the display images projected by said projecting means to a driver; (c) actuator means, coupled to said half mirror reflecting means, for turning said half mirror reflecting means to adjust an angular position of a reflection surface of said half mirror reflecting means from a lateral direction of the vehicle; (d) sensor means for detecting vehicle lateral acceleration; and (e) control means, coupled to said actuator means and said sensor means, for controlling the angular position of said half mirror reflecting means according to vehicle lateral acceleration detected by said sensor means to automatically form virtual display images ahead of said half mirror reflecting means in a driver's eye direction variable according to vehicle lateral acceleration.
Claim 2
Dependent Claim
147 words
A display apparatus for an automotive vehicle, comprising: (a) projecting means, disposed in a passenger compartment of the automotive vehicle, for projecting display images; (b) half mirror reflecting means for reflecting the display images projected by said projecting means to a driver; (c) actuator means, coupled to said half mirror reflecting means, for turning said half mirror reflecting means to adjust an angular position of a reflection surface of said half mirror reflecting means from a lateral direction of the vehicle; (d) sensor means for detecting vehicle lateral acceleration; and (e) control means, coupled to said actuator means and said sensor means, for controlling the angular position of said half mirror reflecting means according to vehicle lateral acceleration detected by said sensor means to automatically form virtual display images ahead of said half mirror reflecting means in a driver's eye direction variable according to vehicle lateral acceleration.
Claim 3
Dependent Claim
68 words
The display apparatus for an automotive vehicle, as set forth in claim 1, which further comprises another actuator means, coupled to said half mirror reflecting means, for tilting said half mirror reflecting means to manually adjust a tilt angle of said half mirror reflecting means so that display images can be correctly reflected from said half mirror reflecting means to the driver according to a driver's sitting height.
Claim 4
Dependent Claim
37 words
The display apparatus for an automotive vehicle, as set forth in claim 1, wherein said control means controls said half mirror reflecting means in accordance with table look-up method on the basis of detected vehicle lateral acceleration.
Claim 5
Dependent Claim
28 words
The display apparatus for an automotive vehicle, as set forth in claim 3, wherein said control means controls said half mirror reflecting means in direct forward control method.
Claim 6
Dependent Claim
46 words
The display apparatus for an automotive vehicle, as set forth in claim 3, wherein said actuator means comprises a sensor for detecting an angular position of a reflection surface of said half mirror reflecting means to control said half mirror reflecting means in feedback control method.
Claim 7
Dependent Claim
163 words
A display apparatus for an automotive vehicle having a passenger compartment and a driver, comprising: (a) projecting means disposed in the passenger compartment of the automotive vehicle, for projecting display images; (b) half-mirror reflecting means having a reflection surface for reflecting the display images projected by said projecting means to a driver; (c) actuator means coupled to said half-mirror reflective means, for turning said half-mirror reflecting means to adjust an angular position of a reflection surface of said half-mirror reflecting means from a lateral direction of the vehicle; (d) sensor means for detecting vehicle lateral acceleration; and (e) control means coupled to said actuator means and said sensor means, for controlling the angular position of said half-mirror reflecting means in accordance with a look-up table of values on the basis of detected vehicle lateral acceleration detected by said sensor means to automatically form virtual display images ahead of said half-mirror reflecting means in a driver's eye direction variable according to vehicle lateral acceleration.
Claim 8
Dependent Claim
163 words
A display apparatus for an automotive vehicle having a passenger compartment and a driver, comprising: (a) projecting means disposed in the passenger compartment of the automotive vehicle, for projecting display images; (b) half-mirror reflecting means having a reflection surface for reflecting the display images projected by said projecting means to a driver; (c) actuator means coupled to said half-mirror reflective means, for turning said half-mirror reflecting means to adjust an angular position of a reflection surface of said half-mirror reflecting means from a lateral direction of the vehicle; (d) sensor means for detecting vehicle lateral acceleration; and (e) control means coupled to said actuator means and said sensor means, for controlling the angular position of said half-mirror reflecting means in accordance with a look-up table of values on the basis of detected vehicle lateral acceleration detected by said sensor means to automatically form virtual display images ahead of said half-mirror reflecting means in a driver's eye direction variable according to vehicle lateral acceleration.
Claim 9
Dependent Claim
26 words
The display apparatus for an automotive vehicle, as set forth in claim 6, wherein said control means controls said half-mirror reflecting means by direct forward control.
Claim 10
Dependent Claim
43 words
The display apparatus for an automotive vehicle, as set forth in claim 6, wherein said actuator means comprises a sensor for detecting an angular position of a reflection surface of said half-mirror reflecting means to control said half-mirror reflecting means by feedback control.
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) | 1992-06-05 | 1992-12-05 | 1993-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-05 | 1996-12-05 | 1997-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-05 | 2000-12-05 | 2001-06-06 | $7700.00 | Window Closed / Lapsed |