Abstract: An optical element driving mechanism includes a movable assembly, a fixed assembly, and a driving assembly. The movable assembly is configured to be connected to an optical element. 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 in a range of motion. The optical element driving mechanism further includes a positioning assembly configured to position the movable assembly at a predetermined position relative to the fixed assembly when the driving assembly is not operating.

Abstract: A mixture article for cleaning superficially-adhered substances consists of colloid material (25 wt %-60 wt %), resin (10 wt %-20 wt %), abrasive powders (15 wt %-30 wt %), stabilizer, fibers, and natural turpentine that are bonded together to form a mixture article having high density and high binding, cohesive and adhesive capacities as well wherein the natural turpentine has the property that can greatly reduce the manufacturing temperature in the processing of the mixture article and lower the emission of exhaust to fit to environmental protection benefit thereby. The abrasive powders are utilized to boost the suction power between the mixture article and a working surface so as to shovel up substances adhered onto the working surface thereon. Besides, the colloid material and the resin are equipped with the adhesion property to viscously grip the substances bonded onto the working surface so as to remove them there-from for cleaning purpose.

Abstract: A mixture article for cleaning superficially-adhered substances consists of colloid material (25 wt %˜60 wt %), resin (10 wt %˜20 wt %), abrasive powders (15 wt %˜30 wt %), stabilizer, fibers, and natural turpentine that are bonded together to form a mixture article having high density and high binding, cohesive and adhesive capacities as well wherein the natural turpentine has the property that can greatly reduce the manufacturing temperature in the processing of the mixture article and lower the emission of exhaust to fit to environmental protection benefit thereby. The abrasive powders are utilized to boost the suction power between the mixture article and a working surface so as to shovel up substances adhered onto the working surface thereon. Besides, the colloid material and the resin are equipped with the adhesion property to viscously grip the substances bonded onto the working surface so as to remove them there-from for cleaning purpose.