Patent ID: 7854507

Claim:
An eyeglass device with a detachable lens unit comprising a frame having a first end and a second end respectively connecting to a foot; an intermediate between the first end and the second end having an upper edge and a lower edge in height direction and an inner surface and an outer surface in thickness direction; a connecting base extends from the intermediate and having a recess extending from an interior surface of the connecting base to an outside surface of the connecting base but not reaching the outside surface, wherein the recess further has an opening, a top and a bottom of the opening, and two flanges respectively formed on the top and bottom of the opening; a lens unit having two lenses and a connecting piece bridging between the two lenses; the connecting piece having a top and a bottom in height direction and a first surface and a second surface in thickness direction, wherein the first surface faces the inner surface on the intermediate of the frame and the second surface has two grooves respectively defining at the top and the bottom of the connecting piece to engage the flanges of the frame.