Abstract: A method of surfacing and edging spectacle lenses utilizing single-point blocking of each lens for both the surfacing and edging operations. The single point utilized is the frame, or pattern, center of the lens. The process is applicable to sphero-cylindrical lenses as well as pure spherical lenses, and in its preferred form requires only a single block attachment step to accomplish both the surfacing and edging processes.
Abstract: A method of surfacing and edging spectacle lenses utilizing single-point blocking of each lens for both the surfacing and edging operations. The single point utilized is the frame, or pattern, center of the lens. The process is applicable to sphero-cylindrical lenses as well as pure spherical lenses, and in its preferred form requires only a single block attachment step to accomplish both the surfacing and edging processes.
Abstract: A method of surfacing and edging spectacle lenses utilizing single-point blocking of each lens for both the surfacing and edging operations. The single point utilized is the frame, or pattern, center of the lens. The process is applicable to sphero-cylindrical lenses as well as pure spherical lenses, and in its preferred form requires only a single block attachment step to accomplish both the surfacing and edging processes.