Holographic fine-line Pattern
AssigneeDai Nippon Printing Co., Ltd.
InventorMitsuru Kitamura
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Abstract
The present invention relates to a three-dimensional security feature using a hologram which can not be counterfeited with color copying machines or diffraction grating image forming devices. The three-dimensional security feature comprises a hologram which is recorded in such a manner that it can be reconstructed to comprise at least two three-dimensional linear patterns when locally viewed, at least one of these two three-dimensional linear patterns having at least one portion which crosses the other linear pattern at the inner side and at least one portion which crosses the other linear pattern at the outer side.
Claims13
A three-dimensional security feature comprising a hologram, wherein said hologram is recorded in such a manner that it can be reconstructed to comprise at least two three-dimensional linear patterns when locally viewed, at least one of said at least two three-dimensional linear patterns having at least one portion which crosses the other linear pattern at the inner side and at least one portion which crosses the other linear pattern at the outer side.
Dependencies are inferred from the claim text.