Patent ID: 7246899

Claim:
A detachable shelter frame for mounting in front of a primary spectacles frame which comprises a frame body having a primary bridge mounting two lenses in position, wherein said detachable shelter frame comprises: two auxiliary lenses; a shelter frame for supporting said two auxiliary lenses in position, wherein said shelter frame comprises a shelter bridge extended between said two auxiliary lenses, wherein said shelter bridge, which is made of flexible material, has an elongated retention groove extended along a rear side thereof for receiving a front side of said primary bridge at a position that a front bottom edge of said primary bridge is engaged with said retention groove so as to retain said detachable shelter frame in front of said primary spectacles frame; and two resilient mounting devices spacedly provided at said shelter frame for detachably mounting said detachable shelter frame in front of said primary spectacles frame, wherein each of said resilient mounting devices comprises: a resilient arm rearwardly extended from said shelter frame to a rear position of said respective lens of said primary spectacle frame, and an engaging member which is extended from said resilient arm for pressing against a rear surface of said respective lens of said primary spectacles frame in such a manner that said two resilient arms substantially pull said two engaging members towards said primary spectacles frame so as to apply an urging pressure against said primary spectacles frame for holding said frame body of said primary spectacles frame between said shelter frame and said engaging members, so as to securely mount said detachable shelter frame in front of said primary spectacles frame.