US Patent 7712893 Jewelry article for a lens of eyeglasses and a jewelry-installation tool for a pair of eyeglasses

The base, on which the main body of a jewel is mounted, and the rear surface magnet are connected to the chain part. By this jewelry article for eyeglasses being mounted on a lens of the pair of eyeglasses, even if the main body of a jewel and the rear surface magnet fall because of their positioning difference on the lens occurred by some contacts to the main body of the jewel, the base and the rear surface magnet are in a state of being hanged down on an eyeglass frame through the chain part joined to the eyeglass frame by the joining part for an eyeglass frame.