Patent ID: 7528885

Claim:
A portable electronic device with lens rotation positioning structure, comprising: a lens main body configured internally with lens and electronic element required for operation and a first pivot and a second pivot disposed externally on each side thereof; an outer casing consisting of an upper casing and a lower casing which is respectively disposed with a space thereon that can accommodate lens main body, knob and the positioning assembly; a first axle seat and a second axle seat are respectively disposed on upper casing and lower casing in a position relative to the first pivot and the second pivot arranged at each side of lens main body; a knob linking securely to the first pivot disposed at one side of lens main body; a liquid crystal display (LCD) mounted on the outer casing and electrically connected to the electronic element disposed inside the lens main body for displaying images obtained by lens in lens main body; and a positioning assembly configured between the knob and the first axle seat and consisting of a movable unit and a fixed unit, wherein said movable unit forms by bending an immobile member and at least an elastic member; said immobile member is secured to the side of knob opposite the first axle seat; the side of said elastic member in contact with the immobile member is configured with at least one protruding member; and the fixed unit is secured to the side of first axle seat opposite the knob and arranged with a plurality of indents to engage and position the protruding member disposed on movable unit, the side of said fixed unit in contact with the at least one protruding member is arranged with a wear resistance layer; wherein the positioning structure configured on the side of lens main body between the first pivot and the knob mainly has at least one cut plane on the arc surface of the cylindrical-shaped first,pivot, and in correspondence, a socket on the knob that similarly has a cut plane for insertion of first pivot.