Luxim, which makes a long-lasting lightbulb that creates light with radio waves--has raised an additional $21 million, according to VentureBeat.
The Sunnyvale, Calif.-based start-up has come up with a way to get rid of the parts inside of high-intensity discharge (HID) lamps that are often the first to fail. (Read our story from last year here.)
In traditional HID lamps, high voltage pulses pass between two electrodes. The energy creates plasma from the ambient gases trapped inside the bulb and you get light. The electrodes, however, degrade over time. Tungsten splatters off of them and blackens the surface of … Read more