| 摘要 |
PROBLEM TO BE SOLVED: To provide an evaluation testing method having high reproducibility and reliability, similar to actual lens shape processing or a using condition of a user, when evaluating coat membrane adhesive performance of a spectacle lens having a coat membrane on the surface. SOLUTION: A processing crack is intentionally applied onto the coat membrane of the spectacle lens by using at least one method among following methods (1) to (3), and the spectacle lens is inputted into an acceleration testing machine for weather resistance or the like as long as an optional period, and then the coat membrane adhesive performance of the spectacle lens is evaluated. (1) When performing the lens shape processing of the spectacle lens in accordance with a frame shape, an extraordinary excessive load is applied to a lens chuck part for holding the spectacle lens. (2) When performing the lens shape processing of the spectacle lens in accordance with the frame shape, the lens shape processing is performed, while applying an extraordinary excessive whetstone pushing load to a spectacle lens edge part. (3) When framing the spectacle lens into a frame, the lens is clamped by extraordinary excessive clamping force. COPYRIGHT: (C)2004,JPO&NCIPI
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