Patent ID: 7727678

Claim:
A holographic data storage medium, comprising a biaxially-oriented polymer film in which holographic information is stored via changes in the local surface structure thereof, a reflective layer arranged on the surface of the polymer film that is changed by the storage of the holographic information, and an adhesive layer for adhering the holographic data storage medium to an object, wherein the holographic data storage medium stores therein holographic information, relating to the object to which it is adhered, as local, point by point changes in the polymer orientation, and thus, the surface structure, of the storage layer by heating through a single laser beam serving as a write beam, wherein the surface structure changes are pits of predefined size, and wherein the polymer film comprises a material selected from the following group: polypropylene, polyethylene terephthalate, polymethyl pentene, polyvinyl chloride and polyimide.