| 摘要 |
PROBLEM TO BE SOLVED: To shorten the time for a mirror finish working of a V-shaped surface without losing its fashionableness. SOLUTION: When working a lens 1 for spectacles, after finishing a V-shape groove in the outer circumferential surface of the lens 1, the V-shaped surface 1R in the side of a lens concave surface 1B and a flat surface 1S connected to the V-shaped surface 1R are polished. The lens for the spectacles is so finished that the V-shaped surface 1F in the side of a convex surface 1A of the lens 1 is maintained in its finished state, the V-shaped surface 1R in the side of the lens concave surface 1B and the flat surface 1S connected to the V-shaped surface 1R are formed into a mirror finish surface, while the V-shaped surface in the side of the lens convex surface 1A is formed into an opaque surface. COPYRIGHT: (C)2004,JPO
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