MASTER DIE, METHOD OF PREPARING MASTER AND THE MASTER

摘要

PROBLEM TO BE SOLVED: To provide a master die and a method of preparing the same capable of preventing protrusion of a material and enabling transfer with high accuracy when a master of a forming die for forming an optical element is prepared.;SOLUTION: To prepare a formed body in which a formation part having a shape of the optical element is formed on the surface of a substrate part 1, this master die corresponds to the shape of the formed body. The die includes a die face forming a shape of an object part corresponding to the formation part by deforming an object material made of resin on the surface of a substrate 31 constituting the master. The die face includes: a transfer part 21 transferring a shape equivalent to an optical face of the optical element; a plane part 20a formed of a plane opposing to the substrate 31; and a resin storage recessed part 22 formed by surrounding the transfer part 21 between the transfer part 21 and the plane part 20a and constituting a space storing the object material which cannot be stored in a space between the transfer part 21 and the surface of the substrate 31. Wet performance with respect to resin 10R on the surface of the transfer part 21 is set higher than that with respect to the resin 10R on the surface of the resin storage recessed part 22.;COPYRIGHT: (C)2011,JPO&INPIT