US4132575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing three-dimensional replica
Assignee: Fujinon Corp
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Filing: 1977-09-16
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Granted: 1979-01-02
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Expires: 1997-09-16
Abstract
Abstract A moire contour map of a three-dimensional object is obtained by a moire contour measuring system. The moire contour map is used for making a profiling model to be used in a profiling machine to make a number of plates having configurations corresponding to the contour lines of the moire contour map. The number of plates prepared by the profiling machine are stacked to form a stack of plates having a contour approximately equivalent to the contour of the original three-dimensional object. The stacked plates are bound together and a surface smoothing cover or a filling agent is applied on the surface of the stacked plates to form a replica of the object.
Inventors
- 👤 Masane Suzuki
- 👤 Kiyoshi Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:35
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/0037; Y; Y10; Y10T; Y10T83/00; Y10T83/141; Y10T83/869
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
154 words
A method of producing a three-dimensional replica of a three-dimensional object comprising producing a moire contour map of the three-dimensional object by use of a moire contour measuring system, wherein the said system includes illuminating the said three-dimensional object with light modified by a grating, and photographing the said object so illuminated with a camera utilizing another grating to record the moire contour map, preparing a profiling model which carries profiling curves representing the moire contour lines of said moire contour map from said moire contour map by contact printing the moire contour map on a photosensitive resinous material and removing parts of the resinous material in the form of the moire contour map printed thereon by an etching process, preparing a number of plates having configurations corresponding to said moire contour lines by a profiling machine by use of said profiling model, stacking said number of plates and binding said stacked plates together.
Claim 2
Independent Claim
154 words
A method of producing a three-dimensional replica of a three-dimensional object comprising producing a moire contour map of the three-dimensional object by use of a moire contour measuring system, wherein the said system includes illuminating the said three-dimensional object with light modified by a grating, and photographing the said object so illuminated with a camera utilizing another grating to record the moire contour map, preparing a profiling model which carries profiling curves representing the moire contour lines of said moire contour map from said moire contour map by contact printing the moire contour map on a photosensitive resinous material and removing parts of the resinous material in the form of the moire contour map printed thereon by an etching process, preparing a number of plates having configurations corresponding to said moire contour lines by a profiling machine by use of said profiling model, stacking said number of plates and binding said stacked plates together.
Claim 3
Dependent Claim
26 words
A method of producing a three-dimensional replica as defined in claim 1 further comprising applying a surface smoothing means over the surface of the stacked plates.
Claim 4
Dependent Claim
21 words
A method of producing a three-dimensional replica as defined in claim 2 wherein said surface smoothing means is a flexible film.
Claim 5
Dependent Claim
21 words
A method of producing a three-dimensional replica as defined in claim 2 wherein said surface smoothing means is a filling agent.
Claim 6
Dependent Claim
32 words
A method of producing a three-dimensional replica as defined in claim 1 wherein said moire contour map is prepared for a plurality of faces of the three-dimensional object viewed from different directions.
Claim 7
Dependent Claim
29 words
A method of producing a three-dimensional replica as defined in claim 5 wherein said plurality of faces of the three-dimensional object viewed from different directions are moire contour-measured simultaneously.
Claim 8
Dependent Claim
63 words
A method of producing a three-dimensional replica as defined in claim 6 wherein the three-dimensional object is illuminated simultaneously from different directions by a plurality of light sources and a plurality of mirrors are used to reflect the light from the light sources toward the object and further reflect the light reflected by the object to a camera for photographing moire contour maps.
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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) | 1982-01-01 | 1982-07-03 | 1983-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-01 | 1986-07-03 | 1987-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-01 | 1990-07-03 | 1991-01-02 | $7700.00 | Window Closed / Lapsed |