| 摘要 |
The lenses of the sunglasses are held on the bridge piece members. The lenses (18,19) are easily individually exchangeable by hand in the bridge piece (11). The lenses are pref. arranged to bear against mountings joined together via a bridge, being held in place by hooks on the mountings. A slide (46) moves in the vertical direction on the bridge central member (16), having two arms (48,49) parallel to the bridge, on which are hooks (51) fitting over the lenses in the fixed position.
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