US5696552A
Expired / Lapsed
US
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Stereoscopic display apparatus
Assignee: Fujitsu Ltd
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Filing: 1996-01-30
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Granted: 1997-12-09
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Expires: 2016-01-30
Abstract
Abstract An image display to display a 2-dimensional image and a beam deflector to deflect the lights from the pixels constructing the image of the image display are provided. The beam deflector is arranged closely in front of the image display. A plurality of 2-dimensional images of different visual directions are sequentially displayed in the image display. The light from each pixel is deflected by the beam deflector synchronously with the display of the 2-dimensional image so that the light from each pixel is directed to the region in which the visual point has been set in order to obtain each image. The switching operation in this instance is executed at a high speed.
Inventors
- 👤 Hirokazu Aritake
- 👤 Masayuki Kato
- 👤 Manabu Ishimoto
- 👤 Noriko Sato
- 👤 Masato Nakashima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:25
CPC Classifications
G; G03; G03H; G03H1/00; G03H1/04; G03H1/0402; G03H1/0406; G02; G02B; G02B30/00; G02B30/20; G02B30/26; G02B30/27; G03H1/08; G03H1/26; G03H1/268
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
37 words
A stereoscopic display apparatus comprising: image display means for displaying a plurality of 2-dimensional images of different visual directions; and beam deflecting means for deflecting lights from the pixels constructing an image of said image display means.
Claim 2
Dependent Claim
37 words
A stereoscopic display apparatus comprising: image display means for displaying a plurality of 2-dimensional images of different visual directions; and beam deflecting means for deflecting lights from the pixels constructing an image of said image display means.
Claim 3
Dependent Claim
20 words
An apparatus according to claim 1, wherein said beam deflecting means is independently provided for each pixel constructing the image.
Claim 4
Dependent Claim
21 words
An apparatus according to claim 1, wherein said beam deflecting means is provided for a plurality of pixels constructing the image.
Claim 5
Dependent Claim
89 words
A steroscopic display apparatus comprising: image display means for displaying a plurality of two-dimensional images of different visual directions; and beam deflecting means for deflecting light from pixels constructing an image of said image display means, wherein said beam deflecting means is independently provided for each pixel constructing the image, and wherein said beam deflecting means includes deflection scanning means for deflecting and scanning light from each pixel; and directional diffusing means for diffusing the light deflected by said deflection scanning means within a predetermined angle range and transmitting.
Claim 6
Dependent Claim
89 words
A steroscopic display apparatus comprising: image display means for displaying a plurality of two-dimensional images of different visual directions; and beam deflecting means for deflecting light from pixels constructing an image of said image display means, wherein said beam deflecting means is independently provided for each pixel constructing the image, and wherein said beam deflecting means includes deflection scanning means for deflecting and scanning light from each pixel; and directional diffusing means for diffusing the light deflected by said deflection scanning means within a predetermined angle range and transmitting.
Claim 7
Dependent Claim
36 words
An apparatus according to claim 3, wherein said beam deflecting means is constructed by phase display means for displaying the phase distribution by diffusing the light from each pixel within a predetermined angle range and diffracting.
Claim 8
Dependent Claim
45 words
An apparatus according to claim 3, wherein said beam deflecting means has: deflection scanning means for deflecting and scanning the light from each pixel; and directional diffusing means for diffusing the light deflected by said deflection scanning means within the predetermined angle range and transmitting.
Claim 9
Dependent Claim
37 words
An apparatus according to claim 2, wherein said beam deflecting means includes phase distribution display means constructed by means for displaying a phase distribution in only the horizontal direction and light enlarging means in the vertical direction.
Claim 10
Dependent Claim
63 words
An apparatus according to claim 1, wherein said image display means is means for displaying a 1-dimensional image in the horizontal direction, and said apparatus further includes phase distribution display means serving as a means for displaying a phase distribution in only the horizontal direction, and scanning means in the vertical direction, image forming means, and light enlarging means in the vertical direction.
Claim 11
Dependent Claim
52 words
An apparatus according to claim 8, wherein said image display means and said phase distribution display means are realized by pixels for image display and pixels for phase display, each of said pixels for phase display is a pixel which is short in the horizontal direction and long in the vertical direction.
Claim 12
Dependent Claim
48 words
An apparatus according to claim 5, wherein said image display means sequentially displays a plurality of images produced from the images in the plurality of visual directions, and said phase distribution display means diffracts the light from the pixel constructing each image toward a plurality of virtual openings.
Claim 13
Dependent Claim
32 words
An apparatus according to claim 10, wherein said phase distribution display means comprises: means for displaying the phase distribution in only the horizontal direction; and light diffusing means in the vertical direction.
Claim 14
Dependent Claim
61 words
An apparatus according to claim 10, wherein said image display means is means for displaying the image only in the horizontal direction, said phase distribution display means is means for displaying a phase distribution in only the horizontal direction, and said apparatus further has scanning means in the vertical direction, image forming means, and light diffusing means in the vertical direction.
Claim 15
Dependent Claim
25 words
An apparatus according to claim 11, wherein said means for displaying the phase distribution in only the horizontal direction is an acoustic optical device array.
Claim 16
Dependent Claim
52 words
An apparatus according to claim 4, wherein said image display means displays the image from a desired direction, and said beam deflecting means deflects the light from the pixel constructing the image toward a virtual opening which is determined by the visual direction of the light from the pixel constructing the image.
Claim 17
Dependent Claim
43 words
An apparatus according to claim 4, wherein said image display means displays images formed from the image in a plurality of visual positions, and said beam deflecting means deflects the lights from the pixels constructing said image toward a plurality of virtual openings.
Claim 18
Dependent Claim
25 words
An apparatus according to claim 4, wherein said beam deflecting means is constructed by means for performing the deflection in the horizontal and vertical directions.
Claim 19
Dependent Claim
35 words
An apparatus according to claim 4, wherein said beam deflecting means is constructed by means for deflecting in only the horizontal direction, and optical enlarging means in the vertical direction which is provided as necessary.
Claim 20
Dependent Claim
57 words
An apparatus according to claim 4, wherein said image display means is means for displaying the image in only the horizontal direction, said beam deflecting means is means for deflecting in only the horizontal direction, and said apparatus further has scanning means in the vertical direction, image forming means, and light diffusing means in the vertical direction.
Claim 21
Dependent Claim
35 words
An apparatus according to claim 4, wherein said deflecting means is constructed by an auxiliary optical system having an image forming function and means for changing a relative position of the pixel for image display.
Claim 22
Dependent Claim
19 words
An apparatus according to claim 19, wherein a piezoelectric device is used as means for changing the relative position.
Claim 23
Dependent Claim
78 words
An apparatus according to claim 4, wherein said deflecting means comprises a light source group which are spatially separated and a device having an image forming function, a distance between the light source group which were spatially separated and the device having said image forming function is equal to or larger than a focal distance of the device, and said deflecting means is constructed by the light emitting position of the light source group which were spatially separated.
Claim 24
Dependent Claim
37 words
An apparatus according to claim 21, wherein the light source constructing said light source group doesn't have the directional diffusing function but emits a wave front having a diffusing property which is extended at a predetermined angle.
Claim 25
Dependent Claim
34 words
An apparatus according to claim 21, wherein the light source group which were spatially separated are constructed by a liquid crystal shutter for allowing an incident plane wave to pass through a slit region.
Claim 26
Dependent Claim
23 words
An apparatus according to claim 21, wherein said light source group which were spatially separated is constructed by a light emitting device array.
Claim 27
Dependent Claim
61 words
An apparatus according to claim 15 wherein a plurality of picture elements are made correspond to one pixel to display the image of said image display means, and the means for deflecting the light in the horizontal direction is constructed by a Lenticular lens and a plurality of light emitting devices arranged at a focal point position of the Lenticular lens.
Claim 28
Dependent Claim
34 words
An apparatus according to claim 25, wherein the means for deflecting the light in the horizontal direction changes the light emitting intensities and positions of said plurality of light emitting device groups, thereby deflecting.
Claim 29
Dependent Claim
40 words
An apparatus according to claim 1, wherein said image display means is constructed by means for making one light emitting device correspond to the pixel of the image and for changing a light emitting intensity of the light emitting device.
Claim 30
Dependent Claim
15 words
An apparatus according to claim 27, wherein said light emitting device is a laser diode.
Claim 31
Dependent Claim
31 words
An apparatus according to claim 17, wherein said means for deflecting in only the horizontal direction is constructed by a mirror in which the direction of the surface is periodically changes.
Claim 32
Dependent Claim
17 words
An apparatus according to claim 4, wherein said directional diffusing means is realized by a diffusing plate.
Claim 33
Dependent Claim
17 words
An apparatus according to claim 4, wherein said directional diffusing means is realized by a hologram plate.
Claim 34
Dependent Claim
30 words
An apparatus according to claim 31, wherein said hologram plate is disposed at a position at which the light from the diffusing plate of a limited region has been recorded.
Claim 35
Dependent Claim
18 words
An apparatus according to claim 17, wherein said vertical direction scanning means is realized by a galvano mirror.
Claim 36
Dependent Claim
19 words
An apparatus according to claim 17, wherein said vertical direction light enlarging means is realized by a Lenticular lens.
Claim 37
Dependent Claim
81 words
An apparatus according to claim 1, wherein said plurality of 2-dimensional image groups of different visual directions are a 2-dimensional image group of a plurality of color components, said beam deflecting means performs the deflection for each color component, said image display means displays the image of every color component, and the image and deflection of every color component are changed with the elapse of time by using a same device irrespective of the color component, thereby displaying a color image.
Claim 38
Dependent Claim
65 words
An apparatus according to claim 1, wherein said plurality of 2-dimensional image groups of different visual directions are 2-dimensional images of a plurality of color components, said image display means has means for spatially separating the pixels of a plurality of color components and displaying, and said beam deflecting means displays a color image by means for simultaneously performing the diffraction to the color components.
Claim 39
Dependent Claim
33 words
An apparatus according to claim 22, wherein the light source group which are spatially separated are constructed by a liquid crystal shutter for allowing an incident wave to pass through a slit region.
Claim 40
Dependent Claim
23 words
An apparatus according to claim 22, wherein said light source group which were spatially separated is constructed by a light emitting device array.
Claim 41
Dependent Claim
19 words
An apparatus according to claim 18, wherein said vertical direction light enlarging means is realized by a galvano mirror.
Claim 42
Dependent Claim
19 words
An apparatus according to claim 18, wherein said vertical direction light enlarging means is realized by a lenticular lens.
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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) | 2000-12-08 | 2001-06-09 | 2001-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-12-08 | 2005-06-09 | 2005-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-12-08 | 2009-06-09 | 2009-12-09 | $7700.00 | Window Closed / Lapsed |