US5519533A
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US
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Three-dimensional information reproducing apparatus
Assignee: Sharp Corp
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Filing: 1995-02-28
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Granted: 1996-05-21
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Expires: 2015-02-28
Abstract
Abstract There is reproduced a three-dimensional image in which there is no dimness or no cross talk and which is light and high in resolution, by a three-dimensional information reproducing apparatus comprising a liquid crystal panel for displaying a discrete Fourier transform image, a light source array which is disposed to the rear of the liquid crystal panel and which emits parallel light, and a synchronous control device for switching, with time division, the discrete Fourier transform image that is displayed in the liquid crystal panel and also an angle of the parallel light that is emitted from the source light array. No color dislocation occurs in a reproduced image, resolution is enhanced, and a light three-dimensional image is reproduced, by a three-dimensional information reproducing apparatus comprising a liquid crystal panel for displaying with time division a discrete Fourier transform image resolved into color components, an illumination device for changing a color of emitted light with time division, and a synchronous control device for synchronizing and switching the image that is displayed on the liquid crystal panel, and the color of the illumination device.
Inventors
- 👤 Toshio Nomura
- 👤 Masayuki Katagiri
- 👤 Noritoshi Kako
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:47
CPC Classifications
G; G09; G09G; G09G3/00; G09G3/001; G09G3/003; G02; G02B; G02B30/00; G02B30/20; G02B30/22; G02B30/24; H; H04; H04N; H04N13/00; H04N13/20; H04N13/204; H04N13/207; H04N13/211; H04N13/225; H04N13/229; H04N13/239; H04N13/257; H04N13/282; H04N13/296; H04N13/30; H04N13/302; H04N13/305; H04N13/31; H04N13/32; H04N13/324; H04N13/346; H04N13/349; H04N13/398; G09G2310/00; G09G2310/02; G09G2310/0235
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
127 words
A three-dimensional information reproducing apparatus comprising: image display means for displaying three monochromic images with time division, each of said three monochromic images being divided from a discrete Fourier transform image in accordance with three primary colors, respectively; optical means disposed to the front of said image display means for performing a discrete Fourier transform at least in a horizontal direction; illumination means disposed to the rear of said image display means for radiating emitted light having color changing with time division to said image display means; and synchronous control means connected to said image display means and said illumination means for switching a color of illumination light radiated from said illumination means and one of said three monochromic images displayed by said image display means, synchronously.
Claim 2
Dependent Claim
127 words
A three-dimensional information reproducing apparatus comprising: image display means for displaying three monochromic images with time division, each of said three monochromic images being divided from a discrete Fourier transform image in accordance with three primary colors, respectively; optical means disposed to the front of said image display means for performing a discrete Fourier transform at least in a horizontal direction; illumination means disposed to the rear of said image display means for radiating emitted light having color changing with time division to said image display means; and synchronous control means connected to said image display means and said illumination means for switching a color of illumination light radiated from said illumination means and one of said three monochromic images displayed by said image display means, synchronously.
Claim 3
Dependent Claim
21 words
The three-dimensional information reproducing apparatus as set forth in claim 1, wherein said optical means includes a two-dimensional array of pinholes.
Claim 4
Dependent Claim
20 words
The three-dimensional information reproducing apparatus as set forth in claim 1, wherein said optical means includes a two-dimensional lens array.
Claim 5
Dependent Claim
21 words
The three-dimensional information reproducing apparatus as set forth in claim 1, wherein said optical means includes a one-dimensional array of slits.
Claim 6
Dependent Claim
22 words
The three-dimensional information reproducing apparatus as set forth in claim 1, wherein said optical means includes a one-dimensional array of cylindrical lens.
Claim 7
Dependent Claim
25 words
The three-dimensional information reproducing apparatus as set forth in claim 1, wherein said illumination means includes a rotational color filter and a white light source.
Claim 8
Dependent Claim
22 words
The three-dimensional information reproducing apparatus as set forth in claim 1, wherein said illumination means includes three light sources of three colors.
Claim 9
Dependent Claim
28 words
The three-dimensional information reproducing apparatus as set forth in claim 1, wherein said illumination means includes a liquid crystal panel, a polarizing plate, and a white light source.
Claim 10
Dependent Claim
119 words
A three-dimensional information reproducing apparatus comprising: a plurality of image display means each for displaying a discrete Fourier transform image with time division; a plurality of illumination means each disposed to the rear of one of said image display means for emitting parallel light to said one of image display means; image combining means for combining discrete Fourier transform images each displayed by one of said plurality of image display means, so as to form one discrete Fourier transform image; and synchronous control means for switching with time division, said discrete Fourier transform images displayed in said plurality of image display means and angles of said parallel light each emitted from one of said plurality of illumination means, synchronously.
Claim 11
Dependent Claim
119 words
A three-dimensional information reproducing apparatus comprising: a plurality of image display means each for displaying a discrete Fourier transform image with time division; a plurality of illumination means each disposed to the rear of one of said image display means for emitting parallel light to said one of image display means; image combining means for combining discrete Fourier transform images each displayed by one of said plurality of image display means, so as to form one discrete Fourier transform image; and synchronous control means for switching with time division, said discrete Fourier transform images displayed in said plurality of image display means and angles of said parallel light each emitted from one of said plurality of illumination means, synchronously.
Claim 12
Dependent Claim
47 words
The three-dimensional information reproducing apparatus as set forth in claim 9, wherein each of said illumination means includes a light source array having a plurality of light sources for emitting light, and a lens for transforming said light emitted from said light source array into parallel light.
Claim 13
Dependent Claim
59 words
The three-dimensional information apparatus as set forth in claim 9, wherein each of said illumination means includes a light source for emitting a light, a light source moving means for moving said light source in a right-angle direction with respect to an optic axis, and a lens for transforming said light emitted from said light source into parallel light.
Claim 14
Dependent Claim
75 words
The three-dimensional information apparatus as set forth in claim 9, wherein each of said illumination means includes a light source array having a plurality of light sources for emitting light, light source array moving means for moving said light source array in a right-angle direction with respect to an optic axis, and a lens array consisting of a plurality of lenses for transforming said light emitted from said light source array into a parallel light.
Claim 15
Dependent Claim
32 words
The three-dimensional information apparatus as set forth in claim 9, wherein said plurality of image display means includes two image display means, and said plurality of illumination means includes two illumination means.
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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) | 1999-05-21 | 1999-11-20 | 2000-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-05-21 | 2003-11-20 | 2004-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-05-21 | 2007-11-20 | 2008-05-21 | $7700.00 | Window Closed / Lapsed |