Framed lens, pattern paper for assembling the same, right and left interchangeable glasses lens, and glasses using the same

Abstract

Lenses are provided in an assortment of frequently used prescriptions and are preground to a desired final contour. The lenses are optionally provided with a lug, temple and modern and with a split bridge member attached thereto to provided a half eyeglass assembly. Alternately, the parts may be provided unassembled. Proper lenses are selected on the basis of a prescription by a consumer and are assembled by the consumer to form a completed pair of eyeglasses. A bridge assembled from the split bridge members is adjustable to set a desired interpupillary distance. The positions of holes for attaching the bridge and lug to the lenses are line-symmetrical with respect to a vertical axis of each lens so as to allow the lens to be used as either a right or left lens.

What is claimed is:  
     
         1 . A framed lens wherein a framed lens split body for the right or left eye which is split at or around a connecting member, such as a bridge, is prepared as a single commodity unit and such split bodies for the opposite sides are assembled together in the distribution stage or by a user to enable them to function as a pair of glasses.