| 摘要 |
PROBLEM TO BE SOLVED: To provide a stereoscopic image expression structure of which the shape is changed in accordance with a change of an observation angle while an image to be viewed stereoscopically maintains the shape of an original image as it is.SOLUTION: A stereoscopic image expression structure for authenticating a security print matter including: an original image area having at least a contour of an original image in order that a shape of the original image can be visually recognized; a stereoscopic image forming image line group formed of a first shape change area in which first shape change image lines formed by compressing an image obtained by dividing one side contour area in a first direction with respect to an original image at a first compression rate are arranged at a prescribed pitch in a line pattern; and a filter image line group in which transparent or translucent filter image lines are arranged at a prescribed pitch in a line pattern. Therein, the stereoscopic image forming image line group and the filter image line group are superimposed on each other, an observation angle is changed and, thereby, the shape of the original image is deformed to the first direction by virtue of a dynamic effect of the contour area to make visualization possible.SELECTED DRAWING: Figure 3 |
