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US08668333B2 Contra-aspheric toric ophthalmic lens 有权
反面非球面复曲面眼镜

Contra-aspheric toric ophthalmic lens
Abstract:
An ophthalmic toric lens to be worn on an eye or implanted inside of an eye, the lens includes an anterior surface, a posterior surface, and a toric shape formed into one of the anterior and posterior surfaces, the toric shape comprising two non-spherical principle meridians each having a region within an annular area of optical zone and the region of one principle meridian being configured for producing a longitudinal ray aberration of a different sign than a longitudinal ray aberration sign from the region of another principle meridian.
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