Spectacle frame for growing child has bridge piece of variable length to adjust distance between lenses has rod with nose pieces fitting concentrically into tube on each lens

摘要

The pair of spectacles (1) has temples with hinges with spring buttons (4) for holding the temples in place. The lenses (11) are connected together by bridge pieces (8) with nose pieces (10) fitting telescopically into tubes (9) connected to the lenses. The ends of the bridge piece slide through apertures (7) and are held by spring buttons (6).