| 摘要 |
PROBLEM TO BE SOLVED: To provide an inner face progressive-power lens that solves defects such as thinness of a lens or appearances in the inner face progressive-power lens with a progressive refraction surface on a refractive surface of a side of augen. SOLUTION: A refractive surface 11 of a side of augen of a distant portion is concave and at least part of a refractive surface 3 of the side of the augen of a near portion is a convex region 31 where one or both of principal meridians of the surface are convex. COPYRIGHT: (C)2011,JPO&INPIT
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