| 摘要 |
PURPOSE:To enable uniform sealing irrespective of the variations in a seal pattern, by a construction wherein an input to an exciting light source of a laser rod is controlled according to the pattern data of a transparent-type liquid crystal. CONSTITUTION:When a printing pattern signal is sent from a console 13 to a liquid crystal 4, data on the reflection factor at the liquid crystal 4, namely, the size of a seal pattern on the liquid crystal 4 is inputted, and an input to a laser exciting source 2 is controlled according to the size of the seal pattern corresponding to the reflection factor. By this control, uniform sealing can be performed irrespective of the size of the seal pattern. |
