Patent US5506705A successfully refreshed from Google Patents.
US5506705A
Expired / Lapsed
US
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Goggle type display apparatus
Assignee: Sharp Corp
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Filing: 1994-09-01
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Granted: 1996-04-09
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Expires: 2014-09-01
Abstract
Abstract The goggle type display apparatus of this invention comprises a first image generating unit for providing an image for the left eye and a second image generating unit for providing an image for the right eye, each of the first image generating unit and the second image generating unit comprising: a polarization beam splitter for polarizing light emitted from a light source; and a reflection type display device including a substrate, a switching circuit formed on the substrate, a display medium for modulating the light polarized by the polarization beam splitter to provide the light with image information, and an electrode layer electrically connected to the switching circuit for applying a voltage to the display medium, the electrode layer reflecting the light incident thereto after passing through the display medium.
Inventors
- 👤 Yoshitaka Yamamoto
- 👤 Yutaka Ishii
- 👤 Fumiaki Funada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:22
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/01; G02B27/0101; G02B27/017; G02B27/0172; G02B30/00; G02B30/20; G02B30/34; H; H04; H04N; H04N13/00; H04N13/30; H04N13/332; H04N13/344; H04N13/398; G02B2027/0132; G02B2027/0136; G02B2027/0143; G02B27/0149; G02B2027/0154; G02B2027/0178; G02B5/00; G02B5/30
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
141 words
A goggle type display apparatus having first image formation means for providing an image for the left eye and second image formation means for providing an image for the right eye, each of the first image formation means and the second image formation means comprising: light polarization means for polarizing light emitted from a light source; reflection type display means including a substrate, switching means formed on the substrate, a display medium for modulating the light polarized by the light polarization means to provide the light with image information, and an electrode layer electrically connected to the switching means for applying a voltage to the display medium, the electrode layer reflecting the light incident thereto after passing through the display medium; and a screen on which the light carrying the image information supplied from the reflection type display means is projected.
Claim 2
Dependent Claim
141 words
A goggle type display apparatus having first image formation means for providing an image for the left eye and second image formation means for providing an image for the right eye, each of the first image formation means and the second image formation means comprising: light polarization means for polarizing light emitted from a light source; reflection type display means including a substrate, switching means formed on the substrate, a display medium for modulating the light polarized by the light polarization means to provide the light with image information, and an electrode layer electrically connected to the switching means for applying a voltage to the display medium, the electrode layer reflecting the light incident thereto after passing through the display medium; and a screen on which the light carrying the image information supplied from the reflection type display means is projected.
Claim 3
Dependent Claim
22 words
A goggle type display apparatus according to claim 1, wherein the display medium of the reflection type display means is liquid crystal.
Claim 4
Dependent Claim
24 words
A goggle type display apparatus according to claim 1, wherein the substrate of the reflection type display means is made of single crystal silicon.
Claim 5
Dependent Claim
36 words
A goggle type display apparatus according to claim 1, wherein each of the first image formation means and the second image formation means further comprises light converging means for converging the light projected onto the screen.
Claim 6
Dependent Claim
37 words
A goggle type display apparatus according to claim 1, wherein each of the first image formation means and the second image formation means further comprises light collimating means for collimating the light emitted from the light source.
Claim 7
Dependent Claim
48 words
A goggle type display apparatus according to claim 1, wherein each of the first image formation means and the second image formation means further comprises light selection means selectively converting the light emitted from the light source to red color light, green color light, and blue color light.
Claim 8
Dependent Claim
43 words
A goggle type display apparatus according to claim 6, wherein the light selection means includes a liquid crystal layer containing a cyan dichroic pigment, a liquid crystal layer containing a magenta dichroic pigment, and a liquid crystal layer containing a yellow dichroic pigment.
Claim 9
Dependent Claim
88 words
A goggle type display apparatus according to claim 6, wherein the light selection means includes a first filter allowing red color light to pass therethrough, a second filter allowing green color light to pass therethrough, a third filter allowing blue color light to pass therethrough, a first optical fiber for guiding the light emitted from the light source to the first, second, and third filters, and a second optical fiber for guiding the light after having passed the first, second, and third filters to the light polarization means.
Claim 10
Dependent Claim
20 words
A goggle type display apparatus according to claim 6, wherein the light selection means includes a mechanical RGB rotation filter.
Claim 11
Dependent Claim
45 words
A goggle type display apparatus according to claim 1, wherein each of the first image formation means and the second image formation means further comprises reflection means for reflecting the light carrying the image information supplied from the reflection type display means to the screen.
Claim 12
Dependent Claim
47 words
A goggle type display apparatus according to claim 10, wherein each of the first image formation means and the second image formation means further comprises an optical fiber for guiding the light carrying the image information supplied from the reflection type display means to the reflection means.
Claim 13
Dependent Claim
32 words
A goggle type display apparatus according to claim 1, wherein at least one of the light polarization means of the first and the second image formation means is a polarization beam splitter.
Claim 14
Dependent Claim
141 words
A goggle type display apparatus having first image formation means for providing an image for the left eye and second image formation means for providing an image for the right eye, each of the first image formation means and the second image formation means comprising: light polarization means for polarizing light emitted from a light source; reflection type display means including a substrate, switching means formed on the substrate, a display medium for modulating the light polarized by the light polarization means to provide the light with image information, and an electrode layer electrically connected to the switching means for applying a voltage to the display medium the electrode layer reflecting the light incident thereto after passing through the display medium; and projection means for magnifying and projecting the light reflected from the electrode layer of the reflection type display means.
Claim 15
Dependent Claim
141 words
A goggle type display apparatus having first image formation means for providing an image for the left eye and second image formation means for providing an image for the right eye, each of the first image formation means and the second image formation means comprising: light polarization means for polarizing light emitted from a light source; reflection type display means including a substrate, switching means formed on the substrate, a display medium for modulating the light polarized by the light polarization means to provide the light with image information, and an electrode layer electrically connected to the switching means for applying a voltage to the display medium the electrode layer reflecting the light incident thereto after passing through the display medium; and projection means for magnifying and projecting the light reflected from the electrode layer of the reflection type display means.
Claim 16
Dependent Claim
160 words
A goggle type display apparatus having first image formation means for providing an image for the left eye and second image formation means for providing an image for the right eye, each of the first image formation means and the second image formation means comprising: light polarization means for polarizing light emitted from a light source; reflection type display means including a substrate, switching means formed on the substrate, a display medium for modulating the light polarized by the light polarization means to provide the light with image information, and an electrode layer electrically connected to the switching means for applying a voltage to the display medium, the electrode layer reflecting the light incident thereto after passing through the display medium; and wherein at least one of the first image formation means and the second image formation means includes means for bending a direction in which the light carrying the image information supplied from the reflection type display means travels.
Claim 17
Dependent Claim
160 words
A goggle type display apparatus having first image formation means for providing an image for the left eye and second image formation means for providing an image for the right eye, each of the first image formation means and the second image formation means comprising: light polarization means for polarizing light emitted from a light source; reflection type display means including a substrate, switching means formed on the substrate, a display medium for modulating the light polarized by the light polarization means to provide the light with image information, and an electrode layer electrically connected to the switching means for applying a voltage to the display medium, the electrode layer reflecting the light incident thereto after passing through the display medium; and wherein at least one of the first image formation means and the second image formation means includes means for bending a direction in which the light carrying the image information supplied from the reflection type display means travels.
Claim 18
Dependent Claim
46 words
A goggle type display apparatus according to claim 14, one of the first image formation means and the second image information means includes the means for bending the direction of the light from the reflection type display, and the other serves as a direct-view type display.
Claim 19
Dependent Claim
88 words
A goggle type display apparatus according to claim 14, wherein the light source is a single light source used commonly to the first image formation means and the second image formation means, and the light polarization means of one of the first image formation means and the second image formation means splits the light from the single light source into two light beams, and one of the two light beams is supplied to the first image information means, while the other is supplied to the second information means.
Claim 20
Dependent Claim
36 words
A goggle type display apparatus according to claim 14, wherein each of the first image formation means and the second image formation means includes an optical system for projecting the image directly onto the respective eye.
Claim 21
Dependent Claim
24 words
A goggle type display apparatus according to claim 14, wherein the substrate of the reflection type display means is made of single crystal silicon.
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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) | 1999-04-09 | 1999-10-09 | 2000-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-09 | 2003-10-09 | 2004-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-09 | 2007-10-09 | 2008-04-09 | $7700.00 | Window Closed / Lapsed |