PERFORATION GLASSES Russian patent published in 2005 - IPC

FIELD: ophthalmology.

SUBSTANCE: perforation glasses have behind-the-ears holders made of linear rods which curve inside and ophthalmologic frame. Non-transparent discs with holed rasters are fastened to the frame. Holes of raster have round conic shape; bigger base of cone is directed to eye to provide getting interference pattern in form of alternating dark and light rings placed along the whole cross-section of light beams which pass those holes through. Holes are located in center hexagonally and have distances among centers to provide overlapping of interference fields with rings belonging to the same type - dark or light - to cover less than half of the surface at all the directions. Holes in rasters have different diameters in vertical rows and any nontransparent disc has lack of segments on the bottom or on the top. Increase in diameters of holes in rasters in vertical rows is performed in the direct their spatial orientation of absent segments. Nontransparent discs are connected to ophthalmologic frame non depending on each other by means of two movable spherical hinges to provide ability of changing their spatial orientation. Rods of behind-the-ears holders have lengths providing overlapping of their ends. One of the ends has massager with two-sided thorns disposed on both sides of behind-the-ear holder. The second behind-the-ear holder has corresponding holes corresponding to sizes and location of thorns on the first behind-the-ear holder. There are longitudinal grooves at straight parts of behind-the-ear holder. Movable permanent magnets and massaging members with thorns are mounted inside those longitudinal grooves.

EFFECT: improved reliability; improved efficiency; widened area of application.

8 dwg