Patent ID: 11884032
Assignee: HOYA LENS THAILAND LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 0:
1. A method of producing a spectacle lens, the method comprising:
defining a lens molding space by holding a first mold and a second mold spaced apart from each other by a predetermined distance, the first mold that includes a base material and a coating portion, the coating portion being made of a nickel alloy, coating the base material, and having a surface formed into a shape corresponding to a shape of one surface of the spectacle lens, the first mold having a recess corresponding to a minute protrusion into a surface of the coating portion of the first mold, the minute protrusion having a height being 0.1 to 10 μm, the second mold having a surface formed into a shape corresponding to a shape of another surface of the spectacle lens, the first mold being held at a lower position with respect to the second mold such that the recess is upwardly oriented;
loading a resin into the space between the first mold and the second mold; and
removing a spectacle lens composed of the cured resin from the first mold and the second mold;
wherein a surface of the minute protrusion has a substantially hemispherical shape.