Patent ID: 11931924
Assignee: NIPPON ELECTRIC GLASS CO., LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  G | IPC B

Claim 22:
23. A manufacturing method for an optical component,
the optical component comprising:
a substrate; and
an uneven layer formed on the substrate,

the manufacturing method comprising:
a transfer step of sandwiching a molding material between the substrate and a flexible mold that is wound in an endless manner so that the uneven layer obtained by transferring an uneven pattern of the flexible mold to the molding material is formed on the substrate,
wherein the flexible mold comprises:
a base; and
a layer having the uneven pattern formed on the base,

wherein the base comprises:
an intermediate sheet;
a first resin sheet arranged on a first main surface side of the intermediate sheet; and
a second resin sheet arranged on a second main surface side of the intermediate sheet,

wherein the intermediate sheet comprises:
a first spacer sheet, which is made of a resin, and is arranged at one end portion of the intermediate sheet in a winding direction of the base;
a second spacer sheet, which is made of a resin, and is arranged at another end portion of the intermediate sheet in the winding direction; and
a glass sheet arranged between the first spacer sheet and the second spacer sheet,

wherein each of first main surfaces of the first spacer sheet, the second spacer sheet, and the glass sheet is bonded to the first resin sheet through intermediation of a first bonding layer,
wherein each of second main surfaces of the first spacer sheet, the second spacer sheet, and the glass sheet is bonded to the second resin sheet through intermediation of a second bonding layer,
wherein a dimension of the first resin sheet in the winding direction is larger than a dimension of the glass sheet in the winding direction, and
wherein a dimension of the second resin sheet in the winding direction is larger than the dimension of the glass sheet in the winding direction.