| 摘要 |
<p>The utility model discloses an optical disc with patterns, which comprises a first base plate (4), a first metal layer (5), a laser beam and a device used for displaying the patterns on the surface of the optical disc, wherein, the upper surface of the first base plate (4) is provided with an annular data recording area (3) surrounding the center hole (1) of the optical disc, a pit representing data is arranged in the data recording area (3), the first metal layer (5) is coated on the upper surface of the first base plate (4), at least the data recording area (3) is covered by the lower surface of the first base plate (4), the laser beam is used for reflectively penetrating the first base plate (4) to be irradiated to the data recording area (3), and the device used for displaying the patterns can be a pit or a table with changeable shapes positioned in the data recording area (3) and assembling the patterns.</p> |
