Abstract: A mouse pad device is provided. The mouse pad device includes a mouse pad body, a first mouse pad power control circuit, a first mouse pad primary resonant circuit, and a first mouse pad secondary resonant circuit. The first mouse pad power control circuit is electrically connected to a first external power. The first mouse pad primary resonant circuit receives a first operating power from the first mouse pad power control circuit, and converts the first operating power into a first wireless power. The first mouse pad secondary resonant circuit receives the first wireless power from the first mouse pad primary resonant circuit and converts the first wireless power into a second wireless power. The first mouse pad primary resonant circuit and the first mouse pad secondary resonant circuit are arranged in the mouse pad body.

Abstract: A mouse pad device is provided. The mouse pad device includes a mouse pad body, a first mouse pad secondary resonant circuit, and a second mouse pad secondary resonant circuit. The first mouse pad secondary resonant circuit receives an external wireless power from a wireless power supply. The second mouse pad secondary resonant circuit receives a relay wireless power from the first mouse pad secondary resonant circuit. The first mouse pad secondary resonant circuit and the second mouse pad secondary resonant circuit are arranged in the mouse pad body. The first mouse pad secondary resonant circuit provides a first wireless power to the mouse device. The second mouse pad secondary resonant circuit provides a second wireless power to the keyboard device according to the relay wireless power.

Abstract: A centrifugal precipitating method is provided. The method includes the following steps. A lighting structure is provided. The lighting structure includes a frame, a chip and a colloid. The frame has a recess. The chip is disposed on a bottom surface of the recess. The colloid includes a glue and several fluorescent particles. The glue is filled in the recess and covers the chip. The fluorescent particles are distributed in the glue. Then, the lighting structure is rotated to move the fluorescent particles toward the bottom surface of the recess.