Eyeglass structure with detachable viewing lens

Details Eyeglass structure with detachable viewing lens Eyeglass structure with detachable viewing lens

2011-02-15

2011-02-15

Mai, Huy K (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

With auxiliary lenses movable in and out of the optical path

C351S083000, C351S086000

Reexamination Certificate

active

07887181

ABSTRACT:
The eyeglass structure mainly contains a frame and a viewing lens. At each interface between a front opening and the two temple members of the frame, a positioning slot with a protruding block therewithin is provided. On the other hand, two positioning pieces, each with a notch, are extended from the two ends of the viewing lens. To install the viewing lens, the positioning pieces are threaded into the positioning slots and the protruding blocks are embedded into the notches to secure the viewing lens. To detach the viewing lens, the positioning pieces are pulled to break out the locking of the protruding blocks and pushed to escape the confinement of positioning slots. The installation and detachment are therefore could be easily and conveniently conducted.

REFERENCES:
patent: 6086199 (2000-07-01), Holland et al.

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