US5028119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft head-up display
Assignee: Raytheon Co
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Filing: 1989-04-07
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Granted: 1991-07-02
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Expires: 2009-04-07
Abstract
Abstract A head-up instrument display for a vehicle including a light emitting image source for producing imaging illumination and a combiner including a spherical beam-splitter coating for partially reflecting the imaging illumination to produce a virtual image viewable by the vehicle operator without diverting attention from the outside scene. In one embodiment, the head-up instrument display is self-contained with the combiner being rotatable into a stowed position when not in use.
Inventors
- 👤 Ronald G. Hegg
- 👤 Mao-Jin Chern
- 👤 Paul C. Norton
- 👤 John J. Ferrer
- 👤 Steven A. Stringfellow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:25
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/0018; G02B27/01; G02B27/0149; G02B27/0101; G02B2027/0118; G02B2027/012; G02B2027/0154; G02B2027/0156; G02B5/00; G02B5/20; G02B5/28
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
91 words
A head-up display for a vehicle comprising: a housing; an image source located in said housing for producing imaging illumination; a combiner for partially reflecting said imaging illumination to produce a virtual image of said image source viewable by the operator of the vehicle; support means pivotally engaged in said housing for selectively positioning said combiner in a use position wherein said combiner extends beyond said housing or in a stowed position wherein said combiner is within said housing; and a cover for covering said combiner when in the stowed position.
Claim 2
Dependent Claim
91 words
A head-up display for a vehicle comprising: a housing; an image source located in said housing for producing imaging illumination; a combiner for partially reflecting said imaging illumination to produce a virtual image of said image source viewable by the operator of the vehicle; support means pivotally engaged in said housing for selectively positioning said combiner in a use position wherein said combiner extends beyond said housing or in a stowed position wherein said combiner is within said housing; and a cover for covering said combiner when in the stowed position.
Claim 3
Dependent Claim
15 words
The head-up display of claim 1 wherein said image source comprises a vacuum fluorescent display.
Claim 4
Dependent Claim
15 words
The head-up display of claim 1 wherein said image source comprises a liquid crystal display.
Claim 5
Dependent Claim
13 words
The head-up display of claim 1 wherein said combiner comprises a spherical beamsplitter.
Claim 6
Dependent Claim
13 words
The head-up display of claim 4 wherein said beamsplitter includes a reflection coating.
Claim 7
Dependent Claim
24 words
The head-up display of claim 5 wherein said beamsplitter includes surfaces of substantially the same radius such that transmitted illumination is substantially not distorted.
Claim 8
Dependent Claim
13 words
The head-up display of claim 6 wherein said beamsplitter includes an anti-reflection coating.
Claim 9
Dependent Claim
82 words
A head-up display for a vehicle comprising: a housing; an image source located in said housing for producing imaging illumination; a combiner for partially reflecting said imaging illumination to produce a virtual image of said image source viewable by the operator of the vehicle; and support means pivotally engaged in said housing for selectively positioning said combiner in a use position and place wherein said combiner extends beyond said housing or in a stowed position wherein said combiner is within said housing.
Claim 10
Dependent Claim
82 words
A head-up display for a vehicle comprising: a housing; an image source located in said housing for producing imaging illumination; a combiner for partially reflecting said imaging illumination to produce a virtual image of said image source viewable by the operator of the vehicle; and support means pivotally engaged in said housing for selectively positioning said combiner in a use position and place wherein said combiner extends beyond said housing or in a stowed position wherein said combiner is within said housing.
Claim 11
Dependent Claim
15 words
The head-up display of claim 8 wherein said image source comprises a vacuum fluorescent display.
Claim 12
Dependent Claim
15 words
The head-up display of claim 8 wherein said image source comprises a liquid crystal display.
Claim 13
Dependent Claim
14 words
The head-up display of claim 8 wherein said image source comprises a spherical beamsplitter.
Claim 14
Dependent Claim
13 words
The head-up display of claim 11 wherein said beamsplitter includes a reflection coating.
Claim 15
Dependent Claim
24 words
The head-up display of claim 12 wherein said beamsplitter includes surfaces of substantially the same radius such that transmitted illumination is substantially not distorted.
Claim 16
Dependent Claim
13 words
The head-up display of claim 12 wherein said beamsplitter includes an anti-reflection coating.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-01 | 1994-12-31 | 1995-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-01 | 1998-12-31 | 1999-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-01 | 2002-12-31 | 2003-07-02 | $7700.00 | Window Closed / Lapsed |