US4429328A
Expired / Lapsed
US
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Three-dimensional display methods using vertically aligned points of origin
Assignee: CJM ASSOCIATES
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Filing: 1981-07-16
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Granted: 1984-01-31
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Expires: 2001-07-16
Abstract
Abstract Development of a three-dimensional illusion through sequential displaying on a viewing surface of images of the subject as viewed alternatively first from one point of origin and then, time displaced, from another point of origin at a rate within a range of 4 to 30 changes between the points of origin per second. The effect of the illusion is maximized by having the points of origin vertically aligned with respect to one another and having the points of origin displaced from one another a distance less than normal interoccular distance.
Inventors
- 👤 Edwin R. Jones, Jr.
- 👤 LeConte Cathey
- 👤 A. Porter McLaurin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:27
CPC Classifications
H; H04; H04N; H04N13/00; G; G03; G03B; G03B35/00; G03B35/16; H04N13/20; H04N13/204; H04N13/239
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
70 words
A method for producing a three-dimensional illusion of a subject comprising the step of sequentially displaying on a viewing surface images of the subject as viewed alternately first from one point of origin and then, time displaced, from another point of origin at a rate within a range of 4 to 30 changes between said points of origin per second, said points of origin being vertically displaced from one another.
Claim 2
Independent Claim
70 words
A method for producing a three-dimensional illusion of a subject comprising the step of sequentially displaying on a viewing surface images of the subject as viewed alternately first from one point of origin and then, time displaced, from another point of origin at a rate within a range of 4 to 30 changes between said points of origin per second, said points of origin being vertically displaced from one another.
Claim 3
Dependent Claim
16 words
The method of claim 1 wherein said rate is between 6 and 15 changes per second.
Claim 4
Dependent Claim
14 words
The method of claim 1 wherein said rate is about 8 changes per second.
Claim 5
Dependent Claim
18 words
The method of claim 1 wherein said points of origin are vertically aligned with respect to one another.
Claim 6
Independent Claim
93 words
A method for producing a three-dimensional illusion of a subject comprising the step of sequentially displaying on a viewing surface, from a single point of projection, images of the subject as viewed alternately first from one point of origin and then, time displaced, from another point of origin at a rate within a range of 4 to 30 changes between points of origin per second, with said points of origin vertically displaced with respect to one another and with said points of origin displaced from one another a distance less than 65 millimeters.
Claim 7
Independent Claim
93 words
A method for producing a three-dimensional illusion of a subject comprising the step of sequentially displaying on a viewing surface, from a single point of projection, images of the subject as viewed alternately first from one point of origin and then, time displaced, from another point of origin at a rate within a range of 4 to 30 changes between points of origin per second, with said points of origin vertically displaced with respect to one another and with said points of origin displaced from one another a distance less than 65 millimeters.
Claim 8
Dependent Claim
16 words
The method of claim 5 wherein said rate is between 6 and 15 changes per second.
Claim 9
Dependent Claim
14 words
The method of claim 5 wherein said rate is about 8 changes per second.
Claim 10
Dependent Claim
14 words
The method of claim 5 wherein said distance is about 10 to 15 millimeters.
Claim 11
Dependent Claim
54 words
The method of claim 5, 6, 7, or 8 including the step of recording said images on a single photographic film, with said images from said one point of origin interposed between said images from said another point of origin; and wherein said images are displayed at a rate of 24 images per second.
Claim 12
Dependent Claim
22 words
The method of claim 5, 6, 7, or 8 including the step of obtaining said images by use of a video camera.
Claim 13
Dependent Claim
14 words
The method of claim 10 wherein said images are obtained by two separate cameras.
Claim 14
Dependent Claim
19 words
The method of claim 5, 6, 7, or 8 wherein said images are obtained by calculation of a computer.
Claim 15
Dependent Claim
22 words
The method of claim 5, 6, 7, or 8 wherein said points of origin are vertically aligned with respect to one another.
Claim 16
Independent Claim
87 words
A method for producing a three-dimensional illusion of a subject comprising the steps of: a. obtaining first and second slides of said subject, said first slide representing a view of said subject from one point of origin and said second slide representing a view of said subject from another point of origin, said points of origin being vertically displaced from one another; and b. alternately displaying said slides at a rate within a range of 4 to 30 changes per second between said first and second slides.
Claim 17
Independent Claim
87 words
A method for producing a three-dimensional illusion of a subject comprising the steps of: a. obtaining first and second slides of said subject, said first slide representing a view of said subject from one point of origin and said second slide representing a view of said subject from another point of origin, said points of origin being vertically displaced from one another; and b. alternately displaying said slides at a rate within a range of 4 to 30 changes per second between said first and second slides.
Claim 18
Dependent Claim
16 words
The method of claim 14 wherein said rate is between 6 and 15 changes per second.
Claim 19
Dependent Claim
14 words
The method of claim 14 wherein said rate is about 8 changes per second.
Claim 20
Dependent Claim
28 words
The method of claim 14, 15, or 16 wherein said first slide is displayed from a first projector, and said second slide is displayed from a second projector.
Claim 21
Dependent Claim
23 words
The method of claim 17 wherein said step of displaying is achieved by alternately activating light sources of said first and second projectors.
Claim 22
Dependent Claim
21 words
The method of claim 14, 15, or 16 wherein said points of origin are vertically aligned with respect to one another.
Claim 23
Dependent Claim
44 words
The method of claim 1, 2, 3, 4, 5, 6, 7, 8, 14, 15 or 16 wherein said subject is viewed for an equal length of time first from said one point of origin and then, time displaced, from said other point of origin.
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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) | 1987-01-30 | 1987-08-01 | 1988-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-30 | 1991-08-01 | 1992-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-30 | 1995-08-01 | 1996-01-31 | $7700.00 | Window Closed / Lapsed |