| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To facilitate and ensure the observation of a normal three-dimensional image, especially improve the certainty of truth decision while enabling the truth decision in a short period of time, and also improve a counterfeit prevention effect. <P>SOLUTION: The three-dimensional image display body 10 comprises a first brazed grating, and also comprises; a first element A for setting a diffraction light intensity distribution every pixel 12 by making the diffraction efficiency or area of the first brazed grating correspond to the brightness of corresponding pixels 12 among a plurality of pixels 12; and a second brazed grating having irregular shapes and grating patterns that are symmetric with the first brazed grating by making a parallax direction S as a symmetric axis and also having substantially the same diffraction efficiency and area with the first brazed grating. Each pixel 12 is constituted by arranging a plurality of pairs consisting of a second element B arranged in the vicinity of the first element A at the position of corresponding pixel 12. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
