| 摘要 |
A detachable shelter frame is adapted for mounting on a primary spectacle frame by means of at least two resilient mounting devices. Each of the resilient mounting devices comprises a resilient arm extending rearwardly from the respective auxiliary lens of the shelter frame to ride on the primary spectacle frame, and an engaging member which is connected to the resilient arm and extended to press against a rear side of the primary spectacle frame, wherein the two resilient arms substantially pull the two engaging members towards the primary spectacle frame so as to apply an urging pressure against the primary spectacle frame for holding the frame body of the primary spectacle frame between the shelter frame and the engaging members, so as to securely mounting the shelter frame in front of the primary spectacle frame.
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