| 摘要 |
PROBLEM TO BE SOLVED: To form stripe patterns of shapes divided into discrete parts with high efficiency by using an endless belt of a shape formed with the inside of pattern parts remaining only the external shape parts of the stripe patterns to be formed as apertures. SOLUTION: The light shieldable endless belt 9 formed with the pattern parts remaining only the external shape parts of the stripe patterns to be formed as apertures is installed right above a mask 8 for exposure. This belt is moved in strict synchronization with the transporting speed, direction and parallelism of a base material 1. The base material 1 under transportation is irradiated with the irradiation light from a light source 10 in the state of strictly synchronizing such endless belt 9 and the base material 1. The irradiation light from the parts where both of the striped patterns of the mask 8 for exposure and the external shapes of the patterns of the endless belt 9 arrives at the base material surface. As a result, the striped patterns divided into discrete parts are formed brightly with high accuracy without the occurrence of unsharpness at the boundaries. |
