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US 5,554,432 AGranted
Press polymerization of lenticular images
AssigneeThe Phscologram Venture, Inc.
InventorsEllen R. Sandor, William T. Cunnally, Stephan B. Meyers
Life of this patent
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Abstract
The present invention is a lenticular sheet having lenticles over only a portion of the sheet. The lenticular sheet is formed by bonding a base substrate to a thermosetting polymer sheet having a lenticular array on its top surface. In one embodiment of the invention, a lenticulated image is printed on the top surface of the base substrate. In a second embodiment of the invention, the lenticulated image is printed on the bottom surface of the base substrate. In another embodiment of the invention, which can be used with either of the first two embodiments, text or other material is printed on a portion of the base substrate not underlying lenticles and not having the lenticulated image printed thereon.
Claims20
A lenticular sheet comprising:
- (a) a thermosetting polymer layer having a top surface and a bottom surface;
- (b) a base substrate having a top surface, wherein said top surface is attached to the bottom surface of the polymer layer;
- (c) an array of lenticles formed in a first portion of the top surface of the thermosetting polymer layer;
- and
- (d) a lenticulated image printed on the top surface of the base substrate,
- wherein the lenticulated image only covers a first portion of the base substrate, said first portion underlying the array of lenticles formed in the first portion of the top surface of the thermosetting polymer layer, and wherein text is printed on a second portion of the base substrate, said second portion not underlying the array of lenticles,
- wherein the thickness of the thermosetting polymer layer is such that the lenticulated image is positioned at the focal point of the lenticles,
- wherein the lenticles have a viewing angle of at least 30 degrees,
- wherein the thermosetting polymer layer is cured, and wherein, during fabrication of the lenticular sheet, the registration of the array of lenticles to the lenticulated image was maintained by forming the lenticles in the thermosetting polymer in-line with printing the lenticulated image.
6 more elements
A lenticular sheet comprising:
- (a) a thermosetting polymer layer having a top surface and a bottom surface;
- (b) a base substrate having a top surface, wherein said top surface is attached to the bottom surface of the polymer layer by a polymethyl acrylic binder coating;
- (c) a lenticulated image printed on a first portion of the top surface of the base substrate;
- (d) an array of lenticles formed in a portion of the top surface of the thermosetting polymer layer, wherein text is printed on a second portion of the base substrate, said second portion not underlying the array of lenticles and not overlapping with the first portion of the base substrate;
- wherein the thickness of the thermosetting polymer layer and the polymethyl acrylic binder coating is such that the lenticulated image is positioned at the focal point of the lenticles,
- wherein the lenticles have a viewing angle of at least 30 degrees,
- wherein the thermosetting polymer layer is cured, and wherein, during fabrication of the lenticular sheet, the registration of the array of lenticles to the lenticulated image was maintained by forming the lenticles in the thermosetting polymer in-line with printing the lenticulated image.
4 more elements
A lenticular sheet comprising:
- (a) a thermosetting polymer layer having a top surface and a bottom surface;
- (b) a base substrate having a top surface, wherein said top surface is attached to the bottom surface of the polymer layer;
- (c) a lenticulated image printed on a first portion of the top surface of the base substrate,
- (d) an array of elongated parallel cylindrical lenticles formed in a first portion of the top surface of the thermosetting polymer layer, said first portion overlying the first portion of the top surface of the base substrate;
- and
- wherein the thickness of the thermosetting polymer layer is such that the lenticulated image is positioned at the focal point of the lenticles,
- wherein a second portion of the top surface does not lie over the lenticulated image and does not have cylindrical lenticles formed therein,
- wherein text is printed on a second portion of the base substrate, said second portion underlying the second portion of the top surface and not underlying the array of lenticles and not overlapping with the first portion of the base substrate,
- wherein the lenticles have a viewing angle of at least 30 degrees wherein the lenticles are rib-shaped lenticles having a narrow width and a uniform size and shape,
- wherein the thermosetting polymer layer is cured,
- and
- wherein, during fabrication of the lenticular sheet, the registration of the array of lenticles to the lenticulated image was maintained by forming the lenticles in the thermosetting polymer in-line with printing the lenticulated image.
9 more elements
A lenticular sheet comprising:
- (a) a thermosetting polymer layer having a top surface and a bottom surface;
- (b) a base substrate having a top surface, wherein said top surface is attached to the bottom surface of the polymer layer;
- (c) a lenticulated image printed on a first portion of the top surface of the base substrate;
- and
- (d) an array of elongated, parallel cylindrical lenticles formed in a first portion of the top surface of the thermosetting polymer layer, said first portion overlying the first portion of the top surface of the base substrate,
- wherein text is printed on a second portion of the base substrate, said second portion not underlying the array of lenticles and not overlapping with the first portion of the base substrate,
- wherein, during fabrication of the lenticular sheet, the registration of the array of lenticles to the lenticulated image was maintained by forming the lenticles in the thermosetting polymer in-line with printing the lenticulated image,
- wherein the lenticles have a viewing angle of at least 30 degrees,
- wherein the thermosetting polymer layer is cured, and
- wherein the lenticulated image is positioned at the focal point of the lenticles.
7 more elements
Dependencies are inferred from the claim text.