Patent ID: 6231179
Filing Date: 2001-05-15
Classification: G02C

Abstract:
A method for coupling spectacles and clip-on sun-shades with each other, the spectacles having first lens frames connected together at their inner ends by a first nose frame, lenses fitted into respective first lens frames and arms mounted to outer ends of the first lens frames through hinges, the clip-on sun-shades having second lens frames connected together at their inner ends by a second nose frame and tinted lenses fitted into respective second lens frames, the method comprising the steps of:disposing a permanent magnet to one of the spectacles and the clip-on sun-shades at a predetermined position;disposing a soft magnetic member to the other of the spectacles and the clip-on sun-shades at a preset position in a manner such that the soft magnetic member faces the permanent magnet; andmating the permanent magnet and the soft magnetic member with each other.