Eyeglasses have selective change-length installation and adjustable base-inlay, have bracket-inlet which comprises a stand-like function from mounting hinge to ear-bracket holder for two extension field or for only one extension field
摘要
<p>The eyeglasses have bracket-inlet which comprises a stand-like function from mounting hinge to ear-bracket holder (9) for two extension field or for only one extension field. An inner duct (2) embedded in an outer duct (12) serves for a short-term rest position of the eyeglasses with chin position or front position of the eyeglass wearer. The base-structure is provided with a hand control disk or a level control of the thread mechanism with screwdriver-activity for a correction of the eyeglass position with respect to improved visual acuity.</p>
