公开(公告)号：US20210387430A1

公开(公告)日：2021-12-16

申请号：US16650739

申请日：2018-12-18

Applicant: HOYA LENS THAILAND LTD.

Inventor： Yoshiaki TOYOSHIMA

IPC: B29D11/00 ,  G02B1/04 ,  B29C33/56 ,  B29C33/38 ,  B29C45/37 ,  B29C33/42

Abstract: Provided are a method with which a spectacle lens molding mold having a minute recess can be made with high accuracy, and the like. A method for producing a molding mold 12 for molding a spectacle lens 1 in which a minute protrusion 6 is formed on at least one surface thereof includes a first molding mold preparation step of preparing a first mold 14 that includes a base material 26 and a coating portion 28, the coating portion being made of a nickel alloy, coating the base material, and having a surface formed into a shape corresponding to the shape of one surface of the spectacle lens; and a cutting step of cutting a recess 28A corresponding to the protrusion into the surface of the coating portion of the first mold.

公开(公告)号：US20210370553A1

公开(公告)日：2021-12-02

申请号：US16650734

申请日：2018-12-18

Applicant: HOYA LENS THAILAND LTD.

Inventor： Yoshiaki TOYOSHIMA

IPC: B29C33/38 ,  B29D11/00

Abstract: A method for producing a molding mold for use in the production of a spectacle lens in which a minute protrusion is formed on one surface thereof includes preparing a master mold that has a base material and a coating portion coating the base material and having a surface formed into a shape corresponding to the shape of the one surface of the spectacle lens; cutting a recess corresponding to the protrusion into the surface of the coating portion; producing a transfer mold by performing electroforming on the coating portion in which the recess has been cut, the transfer mold having a surface that is complementary to the surface of the coating portion; and producing a first mold by performing electroforming on the surface of the transfer mold, the first mold having a surface that is complementary to the surface of the transfer mold.