Patent
Lighting device for a bicycle
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TLDR
In this paper, the authors describe a lighting device which is adapted for use with a wheel bicycle and which includes a magnet mounted to one of the wheels and a housing mounted to the bicycle frame.Abstract:
The disclosure herein describes a lighting device which is adapted for use with a wheel bicycle and which includes a magnet mounted to one of the wheels and a housing mounted to the bicycle frame. A solenoid inside the housing has a winding and a core closely mounted to the wheel. A lamp is electrically connected to the solenoid winding so that light is emitted as a result of the magnet passing by the solenoid core as the bicycle wheel rotates. The electrical system includes storage elements which accumulate an excess of electrical energy during wheel rotation to thereby allow light to be emitted after the bicycle has come to a stationary position and until the excess has been used up.read more
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References
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Patent
Bicycle single-wire lighting system with steady-flashing-reflector rear warning device
TL;DR: In this article, a bicycle tail lamp with red LEDs having sufficient brightness and efficiency is employed for a tail lamp, where the flash is powered from the difference between the supply potential and that required by the LEDs so the current through the LEDs is controlled without wasting power or adding unnecessary circuitry.
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