GLASSES Russian patent published in 2020 - IPC A63B33/00 A61F9/02 

FIELD: optics.

SUBSTANCE: invention relates to glasses. Glasses comprise a holder which has a device for holding said glasses on the head of the user, wherein said holder has two rims, respectively, for arranging the optical element by means of a detachable attachment device. Each of said devices includes complementary geometric elements arranged on rim and optical element inner edge, respectively, said geometric elements comprising a protrusion and a slot configured to receive said ledge therein to provide internal fixation of said optical element in said rim. Each of the detachable fasteners comprises a button rigidly connected to the outer edge of one of the devices, including the optical element and the rim, and a socket rigidly connected to the outer edge of the other device, including the optical element and the rim. Said button is configured to be inserted into said slot to provide outer locking of optical element in rim. Each rim has a recess open on the rear side. Each optical element has front support surface, in assembled state located opposite rear additional support surface of said recess. At least one of the outer edges is reversibly deformable, which allows placing said button in said seat and removing it from the latter, when support surfaces are located opposite each other.

EFFECT: use of this invention will allow reliable fixation of optical elements in the rim.

16 cl, 4 dwg