Abstract: Various embodiments of an eyeglass and eyeglass system are provided that can maintain the geometric and optical quality of a lens supported by the eyeglass. The eyeglass can comprise a frame, a support member carried by the frame, and a lens mounting area or groove extending at least partially along at least one of the frame and the support member. The support member can be pivoted, moved, or deflected relative to the frame between a retaining position and an open position. In the open position, the lens can be seated within the lens mounting area. In the retaining position, the support member and the frame retain the lens without exerting deformative forces on the lens. Accordingly, the as-molded geometric and optical qualities of the lens can be preserved.

Abstract: Various embodiments of an eyeglass and eyeglass system are provided that can maintain the geometric and optical quality of a lens supported by the eyeglass. The eyeglass can comprise a frame, a support member carried by the frame, and a lens mounting area or groove extending at least partially along at least one of the frame and the support member. The support member can be pivoted, moved, or deflected relative to the frame between a retaining position and an open position. In the open position, the lens can be seated within the lens mounting area. In the retaining position, the support member and the frame retain the lens without exerting deformative forces on the lens. Accordingly, the as-molded geometric and optical qualities of the lens can be preserved.

Abstract: Various embodiments of an eyeglass and eyeglass system are provided that can maintain the geometric and optical quality of a lens supported by the eyeglass. The eyeglass can comprise a frame, a support member carried by the frame, and a lens mounting area or groove extending at least partially along at least one of the frame and the support member. The support member can be pivoted, moved, or deflected relative to the frame between a retaining position and an open position. In the open position, the lens can be seated within the lens mounting area. In the retaining position, the support member and the frame retain the lens without exerting deformative forces on the lens. Accordingly, the as-molded geometric and optical qualities of the lens can be preserved.

Abstract: Eye glasses including a frame containing deformable lenses within the frame, the frame including means for deforming the lenses or changing the focal length of the lenses to enhance the wearer's ability to see clearly.

Abstract: Sport eyeglasses having removable lenses formed of a one piece plastic molded frame that includes a pair of lens receiving sections, a pair of opposite strap receiving temple sections and a central bridge section integral with the lens receiving sections are described herein. The bridge section is split to define an upper bridge part and a lower bridge part which are capable of being manually distanced from one another so as to define a gap and allowing lenses to be mounted in the lens receiving sections. A fastening element extends through both bridge parts to secure them together once the lenses are installed in the lens receiving sections.

Abstract: An eyeglass frame includes a first portion and a second portion. The portions define an opening therebetween for receiving and retaining a lens. A fastening member is received by the first and second portions to move the first and second portions relative to each other between a first position whereby the opening is sized to receive the lens, and a second position whereby the opening is sized to retain the lens. The fastening member is constructed and arranged to be of a size to join the first portion to the second portion when the portions are engaged in the first position, and to include a break-away section that allows a portion of the fastening member to be severed therefrom when the portions are engaged in the second position.

Abstract: A frame for eyeglasses permits markedly reduced time and labor required for assembly, and higher production efficiency, and it also enables high quality to be achieved at all times without depending on the experience or judgment of individual workers. The frame for eyeglasses is equipped with: an upper half composed of a pair of half-rims, a bridge for connecting the half-rims, and installing sections provided at the outer ends of the two half-rims; a lower half which has a bridge opposed to the bridge of the upper half, and installing sections opposed to the installing sections of the upper half; a bridge connecting member for connecting the two bridges into one piece; an end piece for integrally joining the installing sections of the upper half and the lower half; and a temple connected to the end piece.

Abstract: An audio crossover circuit for use with audio speakers is disclosed. The audio crossover circuit includes a pair of inductors that are series connected and inductively coupled and a pair of capacitors. The inductors and capacitors cooperate for achieving a low-pass crossover slope in excess of 30 dB/octave within one half of an octave of the crossover frequency, thereby eliminating the need for additional inductors and capacitors.

Abstract: To avoid excessive stressing of lenses and still facilitate the attaching and removing of the lens to the rim, a pair of eyeglasses has an improved rim lock member. The rim lock member has a two-parallel wire arrangement and a metal piece slidably movable thereon. The opposite ends of the loop hole of each rim are connected to the two parallel wire ends, and the space of the loop hole can be controlled by moving the metal piece on the two-parallel wire arrangement. Specifically the loop hole of each rim can be reduced by moving the metal piece toward the rim on the two-parallel wire arrangement until the circumferential length of time rim is shortened to wind tightly around the lens, thereby holding the lens fixedly. The bridge of the front of a pair of rimless eyeglasses has a similar parallel wire-and-metal assembly structure.

Abstract: An equalizer circuit is disclosed having adjustable bandpass filters connected with operational amplifiers in feedforward and feedback paths so as to form frequency selective boost and cut signal components, which are then combined to form the equalized output signal by a subtractive operation with a direct unfiltered signal path arranged in parallel with the filtered feedforward and feedback paths. The circuit exhibits a constant-Q operation in that it can be adjusted for selected frequency boost and cut without distortion of the component bandwidths of the individual filters.

Abstract: The bezel closure device comprises bezel tube halves rigid with the ends of a metal bezel. The tube halves define contiguous bases adapted to contact each other to close the bezel. Each tube half includes a throughgoing hole, which is threaded internally to receive a screw, including a shank, formed with threads at a lower portion thereof. A spring washer prevents the screw from becoming loose in the throughgoing hole.

Abstract: A lens bow has a first area with a through hole oriented approximately in the direction of mechanical tension in the bow when it holds a lens set therein, and a second area with an inside threaded sleeve aligned with the through hole. The first and second areas have opposed faces. A screw has a head which rests outside the first area and which is tightened into the inside threaded sleeve to bring the first and second areas towards each other to hold the lens in the lens bow. The shortest distance between the opposed faces are larger in the untightened state and smaller when the screw is tightened to bring the bow into a holding condition about the circumference of a lens set therein.

Abstract: An eyeglass frame in which the rims are openable at their inner (nose) sides. A slot is defined between a pair of pins extending between the rims. A latching member is pivotally mounted on one of the pin and hooks onto the other pin in its closed position for closing the rims and clamping the associated lens therein. An overlay member may be provided on the visible side of the latching member.