Generator powered bicycle headlamp and electrical circuit
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United States of America Patent
Stats
-
Oct 2, 2007
Grant Date -
Nov 3, 2005
app pub date -
Jun 11, 2003
filing date -
Jun 11, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A bicycle headlamp including: a rotor having a plurality of magnet plates attached to spokes of a bicycle wheel, each magnet plate including a plurality of magnets disposed at regular circumferential spacings with alternating south and north poles; and a stator including a power-generating coil disposed in a fixed position to face the magnetic pole faces of the magnet plates. A case includes at least a headlamp electrical circuit for establishing resonance with a certain relative speed of the magnets by means of the power-generating coil and a capacitor connected in series, and for rectifying, smoothing out, and outputting electric power obtained from the power-generating coil. Also included are a light-emitting diode and a condenser lens for focusing light emitted from the light emitting diode in front of the bicycle and for illuminating the roadway.
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