| CPC G02C 7/022 (2013.01) [G02B 1/14 (2015.01); G02C 7/06 (2013.01); G02C 2202/16 (2013.01)] | 12 Claims |
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1. A spectacle lens comprising:
an object-side surface and an eyeball-side surface;
a first refractive region having a first refractive power based on a prescription for correcting a refractive error of an eye; and
a second refractive region having a refractive power different from the first refractive power, the second refractive region having a function of forming a focal point at a position other than a retina of the eye so as to suppress progression of the refractive error of the eye,
wherein an interface portion is disposed inside the spectacle lens,
the interface portion includes a base portion, and convex portions protruding from the base portion, or concave portions recessed from the base portion,
the function of the second refractive region is exerted by using mutually different respective refractive indexes of two types of members sandwiching the interface portion therebetween, and the convex portions or the concave portions, and
an outermost surface portion of the spectacle lens that corresponds to the convex portions or the concave portions is smooth,
wherein the interface portion is formed by a defocus surface substrate on which the convex portions or the concave portions are provided, and lens substrates provided so as to sandwich the defocus surface substrate therebetween,
wherein a film-shaped member embedded in the spectacle lens corresponds to the defocus surface substrate, and
wherein the convex portions or the concave portions are formed on the interface portion toward the object-side surface of the spectacle lens.
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