| abstract |
(57) [Problem] To provide a cylindrical mold in which a fine pattern is transferred to the inner surface of a cylinder with precision and good dimensional accuracy. SOLUTION: UV curing resin processing by ultraviolet (UV), EB curing resin processing by electron beam (EB), optical molding processing, electron beam processing, plasma processing, plasma etching processing, ion beam processing, laser processing, photo processing In a processing method selected from etching, wet etching and machining, a plurality of concaves or convexes having a shape similar to a circle, an ellipse, a racetrack, a triangle, a square, a pentagon, a hexagon or an octagon are formed. A fine pattern such as an arrayed fine pattern is formed on the surface of a cylindrical matrix having the same outer diameter as the outer diameter of the roller, and using this matrix, an electroforming method or a ceramic shell molding method is used. This is a cylindrical mold in which the pattern formed on the matrix is transferred to the inner surface of the cylinder. |