The present disclosure relates to an eyewear assembly that is configured for fast and easy removal or exchange of lenses. The eyewear assembly comprises a connector that may be inserted into a frame front in order to hold the lenses in place, and removed from the frame front in order to release the lenses.

A method for purifying powdered silicon carbide is in the form of a starting material to form a silicon carbide having a purity of at least 99.9%. This method has the following method steps: providing a starting material having a grain size of less than 100 μm and a silicon carbide content with at least 98% purity; and heating the starting material in a vacuum or oxygen-free atmosphere to a temperature above 1700° C. over a period of at least 8 minutes.

A method for purifying powdered silicon carbide is in the form of a starting material to form a silicon carbide having a purity of at least 99.9%. This method has the following method steps: providing a starting material having a grain size of less than 100 μm and a silicon carbide content with at least 98% purity; and heating the starting material in a vacuum or oxygen-free atmosphere to a temperature above 1700° C. over a period of at least 8 minutes.

A frame of eyeglasses lens is described comprising a ring, to accommodate the perimeter of the lens, with two free clampable ends for closing the ring and tightening it around a lens. a temple rod (50) and a hinge for the rod (50) formed by a hooked or curved portion, comprised at an end of the rod (50), configured to slidingly grip onto the outer surface of the first member.

An eyewear device, method for use with an eyewear device, and a non-transient computer readable medium for detecting blood sugar levels are disclosed. The eyewear device has a frame including a first rim configured to support a first lens, a second rim configured to support a second lens, and a bridge connecting the first rim to the second rim. The bridge is configured to receive a nose of a user when the eyewear device is worn by the user. Blood sugar levels are detected by monitoring behavior of a pupil of an eye of the user with a sensor, comparing the monitored behavior with known blood sugar level behaviors, identifying a match responsive to the comparison between the monitored behavior and one of the known blood sugar level behaviors corresponding to a particular blood sugar level, and selecting the particular blood sugar level as a blood sugar level of the user.

An eyewear device, method for use with an eyewear device, and a non-transient computer readable medium for detecting blood sugar levels are disclosed. The eyewear device has a frame including a first rim configured to support a first lens, a second rim configured to support a second lens, and a bridge connecting the first rim to the second rim. The bridge is configured to receive a nose of a user when the eyewear device is worn by the user. Blood sugar levels are detected by monitoring behavior of a pupil of an eye of the user with a sensor, comparing the monitored behavior with known blood sugar level behaviors, identifying a match responsive to the comparison between the monitored behavior and one of the known blood sugar level behaviors corresponding to a particular blood sugar level, and selecting the particular blood sugar level as a blood sugar level of the user.

Eyeglasses include a front frame with a lens-holding rim having an upper rim portion and a lower rim portion which extend to surround the profile of a lens and have respective free ends facing each other in an opening area of the rim, an endpiece coupled rotatably to the lower rim portion about a first pivot axis and coupled rotatably to the upper rim portion about a second pivot axis, the first and second pivot axes being parallel to each other and the first pivot axis being laterally spaced from the second pivot axis on the side facing the rod, the endpiece being configured to rotate about the pivot axes between a closed and an open position of the rim, the endpiece and the upper rim portion cooperating mutually with each other in the closed position to hold the upper and lower rim portions therebetween.

Eyeglasses include a front frame with a lens-holding rim having an upper rim portion and a lower rim portion which extend to surround the profile of a lens and have respective free ends facing each other in an opening area of the rim, an endpiece coupled rotatably to the lower rim portion about a first pivot axis and coupled rotatably to the upper rim portion about a second pivot axis, the first and second pivot axes being parallel to each other and the first pivot axis being laterally spaced from the second pivot axis on the side facing the rod, the endpiece being configured to rotate about the pivot axes between a closed and an open position of the rim, the endpiece and the upper rim portion cooperating mutually with each other in the closed position to hold the upper and lower rim portions therebetween.

A rim lock for an eyeglass frame, including: a screw which includes a screw head and a threaded part, the screw head includes a screw drive; and, a casing including a first portion which includes a first side, a second side, a first hole that extends between two opposite surfaces of the first side, a second hole that extends between two opposite surfaces of the second side, the first and second sides being opposite to each other, and where the first portion defines a hollow cavity; and the casing further includes a second portion which includes a third hole; where the screw head fits in the hollow cavity with the screw drive facing the first hole, the screw head has a larger diameter than the first and second holes.

A modular eyeglasses assembly includes a pair of corrective lenses prepared to conform to a predetermined optical prescription to correct visual deficiencies for a specific user. A plurality of eyeglass frames is provided and each of the eyeglass frames releasably engages a respective one of the corrective lenses for correcting the specific user's vision. Each of the eyeglass frames has a unique structure with respect to each other. A pair of temples has a temple grip is integrated into the temple and a nose bridge has a pair of bridge grips is integrated into the nose bridge. Each of the bridge grips and the temple grips releasably engages a respective one of the corrective lenses to facilitate the corrective lenses to be positioned for correcting the user's vision. A pair of rimless eyeglass frames is provided to releasably engage a respective one of the corrective lenses.