FRAME WITH MOVING LENSES Russian patent published in 2000 - IPC

FIELD: ophthalmology. SUBSTANCE: device has left and right members of frame housing with lenses which are connected by means of crosspieces, ear holders, which are connected to respective frame members through rotating assemblies, regulation screws for controlling divergence of ear holders. Rotating assemblies are mounted on connection plate which are connected by means of lathes. Casings carry guides which are stationary connected to respective frame housing members with lenses. Each casing also contains spring-loaded ball, which is mounted on surface that is perpendicular to guide. Guide has spherical recesses which provide possibility for spring-loaded ball to enter into recesses by complete length of its extending part. Distance between spherical recesses is not less than half of diameter of spring-loaded ball. Lathe in its center carries rod which is perpendicular to lathe and has hinged joint to support plate. Edges of inner sides of connection plates contain regulation screws and springs for clipping divergence of ear holders. Outer surface of each frame has additional plate. EFFECT: improved view in vicinity and long distance for both far-sighted and short-sighted persons, possibility to control divergence of ear holders. 5 dwg