Two new startups promise a better light bulb
DOI: 10.1063/PT.5.027899
New York Times : For more than 100 years, the incandescent bulb has dominated the consumer lighting market. Because newer technologies, such as compact fluorescent lamps and LEDs, are more energy efficient, governments are beginning to phase out incandescents. However, the adoption of new lighting methods has been stalled by either their higher cost or their lower quality of light. Now two startup companies have each developed a bulb that promises to be a true replacement for the incandescent at a comparable price. The Finally bulb uses a magnetic field, rather than a filament or an electrode, to generate light, while the Vu1 bulb uses accelerated electrons to stimulate phosphor. Both will soon be available in stores.
