Patent ID: 7575319
Filing Date: 2009-08-18
Classification: G02C

Abstract:
1. A spectacle set, comprising a primary spectacle and a detachable shelter frame adapted for detachably mounting on said primary spectacle, wherein: said primary spectacle comprises two lenses, a primary bridge extended between two inner sides of said lenses, and two side extensions provided at two outer sides of said lenses for coupling a pair of temples respectively; and said detachable shelter frame comprises two shelter lenses, a shelter bridge extended between two inner sides of said shelter lenses, and a mounting arrangement comprising first through third supporting members provided on said detachable shelter frame to mount on said primary spectacle for providing at least a three-point support of said shelter frame on said primary spectacle, wherein at least one of said supporting members is extended from said shelter bridge to engage with said primary bridge for supporting said shelter frame on said primary spectacle in a balanced manner, wherein a rear side of said shelter bridge is formed corresponding to a mid portion of a front side of said primary bridge so as to engaging with said mid portion of said front side of said primary bridge so as to retain said detachable shelter from in position, wherein said shelter bridge is made of elastic material that said shelter bridge provides a retention force to substantially retain said detachable shelter frame in front of said primary spectacle.