Detachable shelter frame for spectacles

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 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 third supporting member is integrally formed at a rear side of said shelter bridge to form an attaching groove having a C-shaped cross section at said shelter bridge for securely engaging with a mid portion of a front side of said primary bridge so as to retain said detachable shelter frame in position.