US3785819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for photographically preparing anamorphic pictures
Assignee: Reflectomorphics Inc
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Filing: 1972-03-15
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Granted: 1974-01-15
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Expires: 1992-03-15
Abstract
Abstract A method for photographically preparing anamorphic pictures in which a true image of the picture to be prepared is projected through a dioptric lens system onto a curved reflected surface having an axis of curvature which is substantially perpendicular to the projected axial ray. An anamorphic reproduction of the image is reflected from the curved surface onto an opaque or translucent planer surface normal to the axis of curvature, and the planar surface is photographed from a direction parallel to the axis. In some embodiments the curved surface is cylindrical, while in other cases the surface is of conical configuration and the direction of the projected image is changed such that its axial ray is coaxial with the cone at the time the image reaches the surface.
Inventors
- 👤 C Barnes
- 👤 A Fontaine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:52
CPC Classifications
G; G02; G02B; G02B13/00; G02B13/08; G03; G03B; G03B37/00; G03B37/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
99 words
A method for photographically preparing anamorphic pictures, comprising, in combination: projecting a true image of the picture to be prepared through a dioptric lens system onto a curved reflective surface having an axis which is substantially perpendicular to the projected axial ray; maintaining the axial ray of the projected image substantially perpendicular to the axis of the curved reflective surface; reflecting an anamorphic reproduction of the image from the curved surface such that the reflected reproduction lies in a plane normal to said axis; and photographing the anamorphic reproduction from a direction parallel to the direction of said axis.
Claim 2
Dependent Claim
19 words
A method as defined in claim 2, in which the anamorphic reproduction is reflected from a conical reflective surface.
Claim 3
Independent Claim
90 words
A method for photographically preparing anamorphic pictures comprising, in combination: projecting a true image of the picture to be prepared through a dioptric lens system onto a right cylindrical reflective surface; maintaining the axial ray of the projected image substantially perpendicular to the axis of the cylindrical reflective surface; reflecting an anamorphic reproduction of the image from the cylindrical reflective surface such that a portion of the reflected reproduction lies in a plane normal to said axis; and photographing that portion of the anamorphic reproduction which lies in said plane.
Claim 4
Dependent Claim
25 words
A method as defined in claim 4, in which the anamorphic reproduction is photographed from a direction parallel to the axis of the cylindrical surface.
Claim 5
Dependent Claim
44 words
A method as defined in claim 4, in which the axial ray of the projected image is maintained in a direction which meets the axis of the cylindrical surface at an angle of not less than about 70* and not more than about 110*.
Claim 6
Independent Claim
105 words
A method for photographically preparing anamorphic pictures comprising, in combination: projecting a true image of the picture to be prepared through a dioptric lens system onto a right cylindrical reflective surface; maintaining the axial ray of the projected image in a direction which meets the axis of the cylindrical reflective surface at an angle of not less than about 70* and not more than about 110*; reflecting an anamorphic reproduction of the image from the cylindrical reflective surface onto a planar surface normal to said axis; and photographing the anamorphic reproduction on the planar surface from a direction parallel to the direction of said axis.
Claim 7
Independent Claim
89 words
A method for photographically preparing anamorphic pictures comprising, in combination: projecting a true image of the picture to be prepared through a dioptric lens system onto a conical surface having a distinct vertex, the vertex as well as the remaining portion of the conical surface being of reflective material; reflecting an anamorphic reproduction of the image from the conical surface such that the reflected reproduction lies in a plane normal to the conical axis; and photographing the anamorphic reproduction from a direction parallel to the direction of said axis.
Claim 8
Dependent Claim
30 words
A method as defined in claim 8, in which the anamorphic reproduction is photographed from the same direction as that of the projected image as it reaches the conical surface.
Claim 9
Dependent Claim
31 words
A method as defined in claim 8, in which the anamorphic reproduction is photographed from a direction opposite to the direction of the projected image as it reaches the conical surface.
Claim 10
Independent Claim
79 words
A method for photographically preparing anamorphic pictures comprising, in combination: projecting a true image of the picture to be prepared through a dioptric lens system onto a conical reflective surface; reflecting the anamorphic reproduction of the image from the conical surface onto one side of a translucent planar surface normal to the conical axis; passing the anamorphic reproduction through said planar surface to its opposite side; and photographing said anamorphic reproduction from said opposite side of the planar surface.
Claim 11
Dependent Claim
21 words
A method as defined in claim 11, in which the anamorphic reproduction is photographed from a direction parallel to said axis.
Claim 12
Independent Claim
130 words
A method for photographically preparing anamorphic pictures comprising, in combination: projecting a true image of the picture to be prepared through a dioptric lens system onto a conical surface having an axis and a distinct vertex, the vertex as well as the remaining portion of the conical surface being of reflective material and the axis being substantially perpendicular to the projected axial ray; changing the direction of the projected image such that its axial ray is coaxial with the axis of the conical surface at the time the image reaches said surface; reflecting an anamorphic reproduction of the image from the conical surface onto a planar surface normal to said axis; and photographing the anamorphic reproduction on the planar surface from a direction parallel to the direction of said axis.
Claim 13
Independent Claim
143 words
A method for photographically preparing anamorphic pictures comprising, in combination: projecting a true image of the picture to be prepared through a dioptric lens system onto the conical surface of a right circular cone having a distinct vertex, the vertex as well as the remaining portion of the conical surface being of reflective material and the axis of the cone being substantially perpendicular to the projected axial ray; changing the direction of the projeCted image such that its axial ray is coaxial with the cone at the time the image reaches the conical surface; reflecting an anamorphic reproduction of the image from substantially the entire conical surface of the cone such that the reflected reproduction lies in a plane normal to the conical axis; and photographing the anamorphic reproduction on the planar surface from a direction parallel to the direction of said axis.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |