| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a spectacle lens reduced in an amount of the prism shift of the spectacle lens for which prism prescription is applied. SOLUTION: The semi-finish lens 10 where a spherical face based on prescription is formed on a convex face 11 to be an outer face is inclined to make a base bottom direction decline by the prism amount (angleθfor applying the prism) around an optical center point A of the convex face 11, and a concave face 12 of the semi-finish lens 10 is cut and processed based on manufacturing data corrected to set an intersection point B of a face 13 with a central axis MA when the semi-finish lens 10 is inclined to make the base bottom direction decline to be a center of processing, thus creating the lens face 13 for which the prism prescription is applied. COPYRIGHT: (C)2010,JPO&INPIT
|
