| 摘要 |
In a mounting structure of detachable lenses to main spectacles according to the present invention, a detachable lens is provided on the surface side of each lens of main spectacles one over the other, a first magnetically-fitting piece is provided on one of the circumference of each lens and that of each detachable lens mounted to the corresponding lens one over the other, a second magnetically-fitting piece magnetically fitted to the corresponding first magnetically-fitting piece is provided on the other, guide projections are provided symmetrically on one of the circumference of each lens and that of each detachable lens mounted to the corresponding lens one over the other, and a guide hole allowing the corresponding guide projection to guide thereinto is provided in the other.
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