| 摘要 |
The present invention relates to a method for manufacturing a casting mold for forming a sheet, a casting mold for forming a sheet, and a retro-reflection sheet. More specifically, the present invention relates to a method for manufacturing a casting mold for forming the retro-reflection sheet, and the retro-reflection sheet manufactured by using the casting mold for forming the sheet. According to an embodiment regarding the method for manufacturing a casting mold for forming the sheet, wherein a thin slice assembly made of multiple thin slices is used to form a corner-cube type retro-reflection sheet, the method of the present invention includes the processes for: arranging the thin slices to be in contact with each other, to prepare the thin slice assembly having multiple array lines, which become the boundary lines between the neighboring thin slices; forming multiple triangular-pyramid shaped corner-cube mold patterns on the top side of the thin slice assembly array; and transforming the shape of the corner-cube mold patterns on the top side of the thin slice assembly array, by moving more than at least one thin slice of the thin slice assembly toward the array lines. |
