| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing device and a manufacturing method of a laminate sheet excellent in optical performance even though there is a manufacturing error of a multilayered feed block or fluctuation occurred in a manufacturing process. SOLUTION: In the device having many slits 16a, 16b arranged spaced apart by an interval and for manufacturing the laminate sheet constituted by alternately laminating different molten materials by flowing out the different molten materials from slits adjacent to each other, the many slits comprise a plurality of slit groups and include the slits with different slit lengths of the respective slit groups. COPYRIGHT: (C)2010,JPO&INPIT |
