An object of the present invention is to provide an eyeglass that can solve the existing problem that the degree of difficulty in arranging increases. SOLUTION: Two rims and two hollows 4 are installed in a frame, a bridge 3 is connected between the rims, a lens is mounted in the rim, ...
eyeglass frame in quasi-polar coordinates, either using the frame's geometrical “box” center as the origin or using the optical center of the lens as the origin, the computer providing the desired conversion between the two pattern centers. When an optician has a call for edging a lens ...
Measuring instrument for determining the angle of the plane of the frame of an eyeglass frame (3), in particular a plane angle larger frame with a first spectacle lens and a second spectacle lens with - a seat on which can place the first spectacle lens with a bottom or top groove ...