Abstract: A wind-driven light-emitting device comprises a housing, a first shaft sleeving member, a second shaft sleeving member and a plurality of blades. The blades are coupled to a first shaft. The first shaft has a first speed-change gear driving a second speed-change gear of a rotating second shaft. The second shaft has a magnetic element. The second shaft sleeving member has a coil connected with a circuit. The circuit is connected to a plurality of light-emitting (or light-guiding) elements arranged on the blades. When the device is windward, wind propels the blades to rotate. Thus, the magnetic element of the second shaft is rotated to induce voltage on the coil. The circuit rectifies, boosts, stabilizes and regulates the power to drive the light-emitting (or light-guiding) elements. Thereby, the present invention provides a decorative lighting effect without using any external electric power.

Abstract: A wind-driven light-emitting device comprises a housing, a first shaft sleeving member, a second shaft sleeving member and a plurality of blades. The blades are coupled to a first shaft. The first shaft has a first speed-change gear driving a second speed-change gear of a rotating second shaft. The second shaft has a magnetic element. The second shaft sleeving member has a coil connected with a circuit. The circuit is connected to a plurality of light-emitting (or light-guiding) elements arranged on the blades. When the device is windward, wind propels the blades to rotate. Thus, the magnetic element of the second shaft is rotated to induce voltage on the coil. The circuit rectifies, boosts, stabilizes and regulates the power to drive the light-emitting (or light-guiding) elements. Thereby, the present invention provides a decorative lighting effect without using any external electric power.

Abstract: An electronic device including a frame, a fan, and at least one light emitting component or light guiding component is provided. The fan is pivotally connected to the frame, and the at least one light emitting component or light guiding component is disposed on at least one of the frame and the fan.