Abstract: In order to enable ophthalmic (eyeglass) lenses with add-on lens segments to be produced economically so as, for example, to provide a multi-focal addition to a base single lens and dispensed to a user, the add on segment is molded from a liquid photpolimer and partially cured to a state where it is elastomeric (a gel which holds its shape). The segment is then located upon a surface of the base lens which acts as a substrate where the base lens which acts as a substrate and conforms to the surface even if the surface has special corrective curvature as for astigmatism. The base lens may be a conventional plastic lens (acrylic or polycarbonate). No additional adhesive is required. When in place the curing of the segment is completed so that the multi-focal lens with the segment adhering to the base lens is produced.

Abstract: The disclosure is of an eyeglass frame having two lens receiving portions each having an annular channel in which a circular lens may be mounted. The annular channel includes a rear wall which faces the wearer and a frant wall which faces someone who looks at the wearer of the frame. The frame includes an auxiliary wall which extends from the front wall of the channel and changes, for someone looking at the wearer of the frame, the circular appearance of a lens in the channel to another shape determined by the auxiliary wall.

Abstract: A portable, rotary power tool includes a guide roller and a special designed cutter mounted to the spindle of the tool. The rotary tool is presented to a lens blank mounted to a lens defining pattern. The guide roller engages and follows the shape defining lens pattern while the special designed cutter contacts and removes material from the lens blank being contoured. The cutter may be square and include a further shape defining cutting surface thereon for providing a bevel to the lens edge. In a further embodiment, a rotary power tool similar to the above device, including the guide roller and cutter, is mounted to a support fixture. The fixture includes a pivoting arm assembly to which a lens blank and lens defining pattern are mounted. The pivot arm assembly is rotatable toward and away from the cutter carried by the rotary tool such that the cutter engages and removes material from the lens blank dependant upon the shape defined by the lens pattern.

Abstract: The disclosure is of a lens having a bevelled rim and a frame having a channel for receiving the lens and carrying a bevel which is complementary to the bevel of the lens. The lens also carries on its rim a plurality of wedge-like positioning members which grip the channel of the frame and essentially lock the lens in place so that it cannot rotate.

Abstract: A custom-fitted economical eyeware frame constructed at the site of dispensing from a minimum inventory of parts includes lenses of predetermined size and power encompassed by appropriate eye wires, and a bridge assembly, temple end pieces and temple ear stems. Upon selection of an appropriate bridge assembly, any, or all, of the remaining parts may be individually adjusted to custom fit the individual's interpupillary distance requirement. The construction of the eyeglass frame may be readily accomplished by an eyewear professional at any location.

Abstract: The disclosure is of an eyeglass frame having two lens receiving portions removably coupled to a coupling member which permits the spacing between the two lens receiving portions to be adjusted. The lens receiving portions have markings and notches to permit the proper placement of a lens therein and these portions are selectively prepared to present a non-circular appearance even though they receive circular lenses.