Abstract: An optical system is provided. The optical system is used for disposing on an electronic device. The optical system includes a movable portion, a fixed portion, a first driving assembly, and a support module. The movable portion is used for connecting to an optical module. The fixed portion is affixed on the electronic device, and the movable portion is movable relative to the fixed portion. The first driving assembly is used for driving the movable portion to move relative to the fixed portion. The movable portion is movably connected to the fixed portion through the support module.

Abstract: The present invention discloses a composition for lowering blood lipid and elevating high-density lipoprotein and a method for manufacturing the same; the composition comprises monascin or ankaflavin, or a combination thereof; the manufacturing method comprises the steps of: treating a Monascus fermented product with acetone for three times; elevating the concentration of the Monascus fermented product by a process of decompress concentration; and extracting the monascin and the ankaflavin from the Monascus fermented product with a silica gel column chromatography, a Sephadex LH-20 column chromatography, the silica gel column chromatography, and a preparative high performance liquid chromatography sequentially.