Patent ID: 7883248

Claim:
A bicycle illumination apparatus comprising: a plurality of light sources connected in series, each of the light sources Including at least one light-emitting diode that emits light in accordance with an electrical output of a generator that generates electricity in accordance with the movement of the bicycle, adjacent ones of the light sources being connected in series with each other through an electrical connection; a plurality of switches arranged to selectively turn the light sources on and off, the switches being disposed in parallel with each other with respect to the generator, one of the switches being directly connected to the electrical connection between the adjacent ones of the light sources, the one of the switches being disposed between the generator and the electrical connection between the adjacent ones of the light sources; and a controller configured to selectively control an electrical connection between the generator and the light sources in accordance with a rotating state of the generator, the controller selectively turning on only one of the switches at a time to activate a different number of the light sources up to all of the light sources when the rotating state of the generator reaches a predetermined state, wherein the predetermined state is when a total output of the light sources that are serially connected to the generator after activating the different number of the light sources is equal to a total output of the light sources that have been serially connected to the generator before activating the different number of the light sources.