Spectacle lens production method and spectacle lens
AssigneeHoya Lens Thailand Ltd.
InventorYuji HOSHI
Life of this patent
Estimating the term…
Abstract
A method for producing a spectacle lens 2 including a base portion 2 that is made of a resin material and includes a convex object-side face and a concave eyeball-side face, and an optical element 12 that is made of a material different from the material for forming the base portion and is embedded in the base portion, is described. The method includes: arranging an optical element in a cavity 28 of a mold including a first mold part 20 and a second mold part 24 that can be opened and closed; introducing a resin material for forming a base portion of the spectacle lens into the cavity of the mold; obtaining the spectacle lens by curing the resin material that is a resin for forming the base portion; disassembling the mold; and detaching the spectacle lens from the mold.
Claims8
A method for producing a spectacle lens including a base portion that is made of a resin material and includes a convex object-side face and a concave eyeball-side face, and an optical element embedded in the base portion, the method comprising:
- a step of providing the optical element so as to be arranged in a cavity of a mold including a first mold part and a second mold part that can be opened and closed;
- a step of introducing a resin material for forming the base portion of the spectacle lens into the cavity of the mold;
- a step of obtaining the spectacle lens by curing the resin material that is a resin for forming the base portion;
- a step of disassembling the mold;
- and
- a step of detaching the spectacle lens from the mold,
- wherein the step of arranging the optical element comprising
- a step of providing a support for the optical element in a predetermined position in a surface on the first mold part and
- a step of placing the optical element on the support, and
- wherein the support is made of resin material the same as that forming the base portion of the lens.
Dependencies are inferred from the claim text.