Patent ID: 8405765

Claim:
A portable electronic device comprising: a main body comprising a main surface, a cavity formed in the main body, a plurality of recesses formed in inner walls of the cavity and in communication with the cavity, and a cutout formed in the main surface and in communication with the cavity, the cutout comprising a bottom surface parallel with the main surface and three side surfaces connecting the bottom surface to the main surface; a plurality of ball bearings received in the respective recesses; a spherical retaining member received in the cavity and in point-contact with each of the ball bearings and thereby rotatably supported by the ball bearings, the spherical retaining member defining a receiving space therein and an opening in communication with the receiving space; a camera module received in the receiving space and facing the opening; and a cover comprising a square first portion, a second portion extending from the first portion and engaged in the cavity, and a through hole formed through the first and second portions, with an inner wall of the through hole being spherical; wherein the first portion is engaged in the cutout, with three of side surfaces thereof in contact with the three side surfaces of the cutout and the last side surface thereof exposed to outside; and the spherical retaining member is in contact with the inner wall of the through hole and extends through the through hole.