I have been working for a couple of years or so on generating power in a very efficient manner. This idea is for an application of the idea to a real world problem. The normal way to power bicycle lights is to use batteries (not very environmentally friendly) or to use a dynamo that rides on the front or rear wheel ( not very user friendly).
My idea is to use my frictionless power generation system on a bicycle and to make this into a product that can be sold in bicycle shops around the world as a 'bolt-on' replacement for the current solutions, but also to bring the technology to the bicycle manufacturers and convince them to install it on new-build bikes.
The idea consists of a number of magnets that are attached to the spokes of the wheel (front or back) and a coil that generates the power while cycling.... with a small Li battery (or a super capacitor power can be stored for when you stop. By my current calculations, there is also enough power to re-charge a mobile