SPECTACLE LENS, AND METHOD FOR DESIGNING SPECTACLE LENS, MANUFACTURING METHOD AND MANUFACTURING SYSTEM OF THE SPECTACLE LENS

摘要

There is provided a spectacle lens, including: specific first and second reference points, and eye point between the first and second reference points on a meridian, with each point defined on a meridian; and a power variation portion where power is continuously varied from the first reference point to the second reference point, wherein a variation rate of an addition power is substantially zero in a circle of radius 4 mm with the first reference point as a center, and/or in a circle of radius 4 mm with the eye point as a center.

主权项

1. A spectacle lens, comprising:
specific first and second reference points, and eye point between the first and second reference points, with each point defined on a meridian; and a power variation portion where a power is continuously varied from the first reference point to the second reference point, wherein a variation rate of an addition power is substantially zero in a circle of radius 4 mm with the first reference point as a center, and/or in a circle of radius 4 mm with the eye point as a center.