Patent ID: 7130126
Filing Date: 2006-10-31
Classification: G02B,G03B

Abstract:
1. A three-dimensional plastic sheet comprising: a convex lens layer formed of a transparent synthetic resin and having an array of identical semi-spherical convex lenses formed on the top surface thereof; a transparent plate disposed at the bottom surface of the convex lens layer and formed of a synthetic resin plate having a thickness corresponding to a focal distance of each convex lens; a non-focal distance printed layer disposed on the top surface of the transparent plate by means of offset printing for providing a real picture screen thereon; and a focal distance printed layer disposed on the bottom surface of the transparent plate by means of the offset printing for providing a three-dimensional screen thereon through four-color dot printing computed and image-segmented by a computer graphic process, wherein the convex lens layer is bonded to the transparent plate with the non-focal distance printed layer and the focal distance printed layer disposed at the top and bottom surfaces thereof.