| 摘要 |
The present eyewear includes a pair of lenses, a pair of releaseable connectors connected to respective inner ends of the lenses, a pair of temples pivotally connected to respective outer ends of the lenses and a rigid strap connected between rear ends of the temples. The strap is generally U-shaped having substantially parallel legs connected to an arc-shaped base, the substantially parallel legs being connected to rear ends of the temples and when worn, the arc-shaped base extends along the back of a user's head. The strap at its U-shaped base is provided with a telescoping segment for selectively altering the length of the arc-shaped base for altering the spacing between the strap's substantially parallel legs to adjust the strap for varying widths of a user 's head. The inner ends of the lenses are releaseably secured together by connectors. In use, the lenses are separated from each other and pivoted outwardly, the strap wrapped around the back of a user's head and adjusted for size. The lenses are then pivoted towards each other and secured together in front of the user's eyes. The lenses are instantly separable for easily putting on or taking off the eyewear, but they are instantly connectable together for a secure and accurate fit. |
