Check out this new bike light system:
It’s call the Revolights bike lighting system. It reminds me a little of the cycles in the TRON: Legacy movie. It’s a pretty neat idea. The lights are cool and safe at the same time. The LED lights currently blink in sequence when the bike isn’t moving (they might change the pattern prior to production). When the bike is moving, the lights form a solid white arc on the front wheel and a red arch on the rear wheel. It’s currently in the prototype stage. Their goal is to start selling the new light system by March of next year. No idea on how much it’s going to cost.
The Revolights bike lighting system consists of four light rings (two for each wheel), a small circuit board, a magnet, a battery, and spoke clips. The clips are used to mount the LED rings to the wheel rims (below the brake calipers). The LEDs are powered by a USB rechargeable polymer lithium-ion battery. The magnet is used to calculate the bike speed and, based on an algorithm, maintains the illuminated arc size and position. Future designs may feature an accelerometer to calculate speed. The circuit board controls the LEDs to create the desired pattern.