| 摘要 |
PROBLEM TO BE SOLVED: To simplify work on the lens surface of two-point spectacles, to reduce burdens on a lens, to reduce faults and to provide elegant design. SOLUTION: A through-hole is provided on the outer side end part of the lens and a blind small hole or a small notched part is provided on a lens peripheral surface on an almost horizontal straight line with the through-hole. An armor is in an almost circular arc shape curved out from a lens surface to a rear outer side. On the rear end part, a piece part to be pivotally connected to a temple is integrally provided. On a front end part back surface, a means for being fitted to the lens through-hole and fixed to each other is provided. A projection part for preventing the lens from turning together to be abutted to the lens peripheral surface provided with the small hole or notched part is provided on an armor arc shape back surface intermediate part. Inside the projection part for preventing the lens from turning together, the through-hole vertical to the lens peripheral surface for horizontally inserting a locking pin 9 to the small hole part of the lens peripheral surface and a hole for a screw or a pin 12A for preventing the locking pin from falling provided so as to horizontally or vertically cross the through-hole are provided.
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