Patent ID: 7401917

Claim:
A spectacle set, comprising a primary spectacle and a detachable shelter frame adapted for detachably mounting in front of said primary spectacle, wherein: said primary spectacle comprises two lenses, a non-magnetic primary bridge extended between two inner sides of said lenses respectively, 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 spacedly 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 said detachably shelter frame is stably mounted in front of said primary spectacle via said three-point support in a non-magnetically engaging manner, wherein said first and second supporting members are rearwardly and spacedly extended from an upper portion of said shelter bridge while said third supporting member is rearwardly extended from a lower portion of said shelter bridge at a position between said first and second supporting members, wherein said first and second supporting members are substantially rest on said primary bridge to support said detachable shelter frame in front of said primary spectacle while said third supporting member is engaged with a bottom side of said primary bridge to retain said detachable shelter frame in position so as to securely mount said detachable shelter frame in front of said primary spectacle frame with said three-point support.