| 摘要 |
<p>The frame (1) has plates (11) supported on sides of nose of a wearer. Branches (12) are coupled to a face of the frame and occupy a position in which the branches extend in parallel to maintain the frame on temples in head of the wearer. A face angle (F) is defined between a plane tangent to one of elements and a symmetry axis i.e. vertical axis (V), of the face, where the angle ranges between 30 and 50 degrees. Distance (D10) between geometrical barycenters of the plates and a geometrical barycenter (B10) of a glass position (10) ranges between 6-10 mm upon projection on the axis. The frame is made of metal and plastic.</p> |
