US3706486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced lenticular sheet with plural apertured sheets
Assignee: Individual
•
Filing: 1970-08-27
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Granted: 1972-12-19
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Expires: 1990-08-27
Abstract
Abstract A process of forming a lencticular sheet for use in integral photography having an intermediate apertured metal sheet which acts as a reinforcing member and/or as a diaphragm and/or as a field-limiting member, the apertures being coaxial with the lenslets of the lenticular sheet in which they are embedded or with which the sheet is associated. Preferably, the diaphragm layer is a thin apertured metal layer bonded on a second thicker metal layer, in certain instances, the thin layer being provided with diaphragm apertures at the principal points of the lenslets while the thicker layer has larger apertures, which serve as clearance apertures. In certain instances a second metal sheet similar to the first sheet may be provided with the apertures serving as field-limiting apertures, in which case they are preferably hexagonal. The reinforced lenticular sheets according to the present invention may be used for taking the original photographs in integral photography, for converting the pseudoscopic image of a hologram, or of an integral photograph into an autostereoscopic integral photograph, and also in certain instances for viewing integral photographs.
Inventors
- 👤 Roger De Montebello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:37
CPC Classifications
G; G03; G03B; G03B35/00; G03B35/18; G03B35/24
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
106 words
A transparent plastic resin lenticular assembly for use in integral photography comprising a plurality of closely packed positive lenslets of substantially equal focal length, forming a sheet-like structure, a first metal diaphragm sheet embedded in the plastic resin having apertures therein lying substantially in the plane of the principal points of the lenslets, said apertures being of equal area and each being concentric with its associated lenslet, a second metal sheet having fully embedded in said resin larger apertures each coaxial with an aperture in the first metal sheet spaced from the first metal sheet, the edges of said larger apertures serving as field limiting masks.
Claim 2
Dependent Claim
106 words
A transparent plastic resin lenticular assembly for use in integral photography comprising a plurality of closely packed positive lenslets of substantially equal focal length, forming a sheet-like structure, a first metal diaphragm sheet embedded in the plastic resin having apertures therein lying substantially in the plane of the principal points of the lenslets, said apertures being of equal area and each being concentric with its associated lenslet, a second metal sheet having fully embedded in said resin larger apertures each coaxial with an aperture in the first metal sheet spaced from the first metal sheet, the edges of said larger apertures serving as field limiting masks.
Claim 3
Dependent Claim
120 words
A transparent plastic resin lenticular assembly for use in integral photography comprising a plurality of closely packed positive lenslets of substantially equal focal length, forming a sheet-like structure, three metal sheets each having a plurality of apertures which are each concentric with one of the associated lenslets so that the apertures in all three metal sheets are coaxial with each other, a first of the metal sheets lying substantially in the plane of the principal points of the lenslets, a second of the sheets having larger apertures than the apertures in the first sheet, the edges of said larger apertures serving as field limiting masks, and the third apertured metal sheet being positioned between the first and second metal sheets.
Claim 4
Dependent Claim
120 words
A transparent plastic resin lenticular assembly for use in integral photography comprising a plurality of closely packed positive lenslets of substantially equal focal length, forming a sheet-like structure, three metal sheets each having a plurality of apertures which are each concentric with one of the associated lenslets so that the apertures in all three metal sheets are coaxial with each other, a first of the metal sheets lying substantially in the plane of the principal points of the lenslets, a second of the sheets having larger apertures than the apertures in the first sheet, the edges of said larger apertures serving as field limiting masks, and the third apertured metal sheet being positioned between the first and second metal sheets.
Claim 5
Dependent Claim
137 words
A transparent plastic resin lenticular assembly for use in integral photography comprising a plurality of closely packed positive lenslets of substantially equal focal length, forming a sheet-like structure, a first metal diaphragm sheet having apertures therein lying substantially in the plane of the principal points of the lenslets, said apertures being of equal area and each being concentric with its associated lenslet, a second metal sheet having larger apertures each coaxial with an aperture in the first metal sheet spaced from said first metal sheet, the edges of said larger apertures serving as field limiting masks, some of the apertured metal sheets being bonded to a thicker aperture metal sheet, and some of the apertured metal sheets being embedded in the plastic resin lenticular sheets and having their apertures coaxial with the lenslets of said lenticular sheet.
Claim 6
Dependent Claim
137 words
A transparent plastic resin lenticular assembly for use in integral photography comprising a plurality of closely packed positive lenslets of substantially equal focal length, forming a sheet-like structure, a first metal diaphragm sheet having apertures therein lying substantially in the plane of the principal points of the lenslets, said apertures being of equal area and each being concentric with its associated lenslet, a second metal sheet having larger apertures each coaxial with an aperture in the first metal sheet spaced from said first metal sheet, the edges of said larger apertures serving as field limiting masks, some of the apertured metal sheets being bonded to a thicker aperture metal sheet, and some of the apertured metal sheets being embedded in the plastic resin lenticular sheets and having their apertures coaxial with the lenslets of said lenticular sheet.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-19 | 1976-06-19 | 1976-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-19 | 1980-06-19 | 1980-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-19 | 1984-06-19 | 1984-12-19 | $7700.00 | Window Closed / Lapsed |