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US4807965A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for three-dimensional viewing

Assignee: Individual
•
Filing: 1987-05-26
•
Granted: 1989-02-28
•
Expires: 2007-05-26
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Abstract

Abstract A system for presenting stereoscopic images to a viewer includes a screen for presenting first and second images and a plurality of louvers for isolating the images for viewers located back from the screen along predetermined sight lines. In a first embodiment, a pair of stereoscopic images are presented simultaneously on co-planar screens, and fixed isolation louvers isolate the images for a viewer positioned along a center line from the viewing enclosure. In a second embodiment, the stereoscopic images are presented sequentially on a common screen, and movable louvers are provided for isolating the images first from the right eye and then from the left eye. In both cases, viewers may experience three-dimensional images without having to wear glasses or goggles and without having to come up immediately to the viewing device.

Inventors

  • 👤 Reza G. Garakani

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 11:02
CPC Classifications
G; G02; G02B; G02B30/00; G02B30/20; G02B30/26; G02B30/30; G02B30/27

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 71 words
A system for stereoscopic viewing, said system comprising: means for presenting a first image and a second image, said images differing by a predetermined stereoscopic parallax; and a plurality of louvers having a width in the range from about 0.5 to 5 inches for isolating the images from each other along predetermined sight lines corresponding to the positions of a viewer's eyes when the viewer is located within a predetermined area.
Claim 2
Independent Claim 71 words
A system for stereoscopic viewing, said system comprising: means for presenting a first image and a second image, said images differing by a predetermined stereoscopic parallax; and a plurality of louvers having a width in the range from about 0.5 to 5 inches for isolating the images from each other along predetermined sight lines corresponding to the positions of a viewer's eyes when the viewer is located within a predetermined area.
Claim 3
Dependent Claim 38 words
A system as in claim 1, wherein the images are presented simultaneously at two different locations and the louvers are fixed to isolate said locations so that each may be viewed by only one eye of the viewer.
Claim 4
Dependent Claim 44 words
A system as in claim 1, wherein the images are presented sequentially at a single location and the louvers are movable between a first position which isolates one eye from the image and a second position which isolates the other eye from the image.
Claim 5
Dependent Claim 12 words
A system as in claim 2, wherein the images are moving images.
Claim 6
Dependent Claim 50 words
A system as in claim 3, wherein two sequences of images are presented with the first sequence representing a moving scene taken from a first viewpoint and the second sequence representing the same moving scene taken from a second viewpoint, with the distance between the viewpoints representing the stereoscopic parallax.
Claim 7
Dependent Claim 12 words
A system as in claim 1, wherein the louvers are disposed vertically.

References Cited (Backward Citations)

US2639653A Cited
US2974562A Cited
US3101644A Cited
US3334179A Cited
US3439972A Cited
US3495891A Cited
US3731606A Cited
WO1979001035A1 Cited
US4281341A Cited
JPS58184928A Cited
US4469414A Cited
JPS6037520A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-02-28 1992-08-29 1993-02-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-02-28 1996-08-29 1997-02-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-02-28 2000-08-29 2001-02-28 $7700.00 Window Closed / Lapsed

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