| 摘要 |
The present invention relates to a light emitting device mounted on a hub of a bicycle, which comprises a rotary body composed of three or more separable rotor blades coupled to and combined with the hub of the bicycle; a plurality of light sources emitting light by electricity supplied from batteries provided in each of the rotor blades; a light guide rod combined with each of the rotor blades and guiding the light emitted from the light sources by total reflection; and a control unit arranged inside each of the rotor blades and controlling the color and shape of the light emitted from the light sources. The light emitting device makes the light sources whose colors variously change be in contact with the light guide rod having a light wave guiding path formed therein and synchronizes light emitting patterns at the same time, such that a user can recognize various color changes in the light emitting device from a distance, thereby improving visibility and appearance. Also, power can be easily supplied by mounting the batteries in the light emitting device without affecting wheel balance. |
