PROGRESSIVE POWER LENS AND PROGRESSIVE POWER LENS SERIES

摘要

Optimization of the optical properties of transmission light rays is performed in consideration of the prescription for a wearer, the use condition, and the like so that the sum of the surface addition power (ADDb) (S, C, add) at a reference surface and the surface addition power (ADDc) (S, C, add) at a correction surface may be smaller than the addition power (add) specified by the prescription.  It is thereby possible to make the distance power and the addition power, which are important specifications for a progressive power lens, equal to the value specified by the prescription value and improve the optical properties of the transmission light rays to be closer to the target optical properties of the progressive power lens.