Rimless spectacles frame has mountings with recessed screws and outer carriers, to hold the lenses between them and the nose bridge, together with the side arms, for easy cleaning

摘要

The mounting for lenses, in a rimless spectacles frame, has mountings (1,2,4) of titanium or metal or plastics, to secure the lenses (5). The lenses can be of glass or plastics. The mountings have an inner cone recessed screw (1) and an outer holder (2), which can also support the side arms (8). The center mountings also carry the nose bridge (4).