information carrying sheet of copy protection for sheet-like protective screen, using the protective screen, copy prevention method, copy protection protective screen adhesive tape, copy protection and protective wrapper

摘要

A lens screen formed by a plurality of lens sections major optical axes are aligned so as to extend perpendicularly to the surface of the sheet material (57) is formed from [Abstract] transparent plastic sheet material, is positioned on the lower surface of the lens portion copy protection sheet protective screen is comprised of the shading lines which are formed aligned at predetermined intervals while. Shading lines extend so as to intersect with the main optical axis and thus, when fitted over the documents prescribed information is printed the protective screen, the information on the document when viewed diagonally under natural light it It is possible to easily read, and to prevent copying of the information by a conventional copying machine using a vertical alignment type optical transmission technology, such as reading. It is possible, or so as to adhere to the statements by the adhesive, or to cover only a predetermined portion in the form of adhesive tape protective screen protection screen. It can also be adapted to seal the safety seal labels none to house the documents to form the wrapper form protective screens, signs of responsible person is opening.