Abstract: An optical element driving mechanism is provided and includes a fixed assembly, a movable assembly, a driving assembly and a stopping assembly. The fixed assembly has a main axis. The movable assembly is configured to connect an optical element, and the movable assembly is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The stopping assembly is configured to limit the movement of the movable assembly relative to the fixed assembly within a range of motion.

Abstract: A combination mattress includes an elastic body, a bottom cover, longitudinal side covers, transverse side covers, and a pad body, where the bottom cover, longitudinal side covers and transverse covers are in sheet shape, the periphery of each of which is configured with a connecting element; the bottom periphery of the pad body is configured with a connecting element, and the upper edge thereof a shielding sheet. Upon assembly, the bottom cover, two longitudinal side covers and two transverse side covers are covered on the elastic element, and the pad body is placed on the elastic body to form a mattress. The detachable longitudinal side covers and transverse side covers are used to make the mattress have air permeability in different directions, and the detachable pad body allows the replacement thereof with a different type of pad body, thereby improving the practical value of the mattress.

Abstract: The present invention provides an improved table structure, which comprises: a central post, formed as a straight post and composed by plural insertion posts, the top thereof is formed with a head portion, and a power cable is provided inside the central post for being connected to a power source; a table stand, installed at the bottom of the central post, formed in a gradually expanded state; a first layer of table surface, fastened at a proper location on the central post, the center thereof is formed with a through hole; and at least two layers of rotary plates, respectively installed at the portion of the central post defined above the first layer of table surface and at a proper location on the central post defined above the lower layer of rotary plate, the center thereof is formed with a through hole corresponding to the insertion post.