Anti-counterfeit printed matter, method of manufacturing the same, and recording medium storing halftone dot data creation software

摘要

This invention relates to an anti-counterfeit printed matter such as a banknote or a passport which requires anti-counterfeit or anti-copy, a method of manufacturing the same, and a recording medium storing halftone dot data creation software.;Units are arranged at a predetermined pitch in a matrix on a base material in a first direction and a second direction perpendicular to the first direction, each unit including a first object and a second object which are arranged along the first direction on both sides of a center so as to oppose each other and a third object arranged in a region without the first object and the second object, the first object and the second object of each of the units have an on/off relationship and the same area, the first objects form one of a positive image and a negative image of a first invisible image, and the second objects form the other of the negative image and the positive image of the first invisible image, and the third objects form a visible image having a continuous tone.

主权项

1. An anti-counterfeit printed matter having a continuous tone, comprising:
units arranged at a predetermined pitch in a matrix on a base material in a first direction and a second direction perpendicular to the first direction, each of the units including: either a first object or a second object is arranged in a respective first or second region along the first direction in a manner so that the first region and the second region in each of the units oppose each other; a third object arranged between the first region and the second region along the first direction in an area of the unit where the first region and the second region are not arranged; and an imaginary horizontal line extending in the second direction, the imaginary horizontal line being arranged approximately 25% down from a top of the unit and passing between the first region and the second region in a position that passes through a center of the third object; and and wherein the first region and the second region of each of the units have equivalent areas, and a relationship in which one of the first and second regions has a respective object, and the other of the first and second regions does not have a respective object, the first object is adapted to form one of a positive image and a negative image of a first invisible image, while the second object is concurrently adapted to only form the other of the negative image and the positive image of the first invisible image, and the third object is adapted to form a visible image having a continuous tone.