FIELD: medicine; ophthalmology.
SUBSTANCE: device, which has to be the spectacles, has main and additional frames inside any of which the lenses are disposed. Main frame has dam and behind-ears holders. The last ones are connected with extensions at both sides of frame. Dam is made of flexible alloy with shape memory. Extensions have magnets mounted at their lower side. Additional frame also has rod and behind-ears extensions, which have magnets, fastened to their top parts. Magnets interact with each other for connecting additional frame with main one. Flexible rods of main and additional frames help preventing shift of additional frame in case a user pushes it.
EFFECT: improved reliability: improved precision of fastening additional frame to main frame.
24 cl, 10 dwg
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