| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a retroreflective-body manufacturing mold capable of manufacturing a highly accurate retroreflective body by a relatively simple process.SOLUTION: A method of manufacturing the retroreflective body manufacturing mold includes: tentatively fixing a plurality of first flat sheets 17 and polishing one end faces thereof; displacing the one ends in a same direction by the thickness of the first flat sheet 17 and fixing them to form a prototype material 22 in which second corner parts 21 each formed of a first flat surface 19 and a second flat surface 20 orthogonal to each other, are formed adjoiningly and parallel to each other; cutting the prototype material 22 in a direction orthogonal to the second corner parts 21 to form a plurality of prototype material units; and disposing the second flat plates between the prototype material units and fixing the entire body.SELECTED DRAWING: Figure 1 |
