Sun
An Ottawa company is developing a light bulb that can last two decades — yes, even if you use it. Group IV Semiconductor Inc. is being supported by EnCana and Sustainable Development Technology Canada in the design of the light bulb of the future. It would employ an electrical current passed through silicon semiconductors (instead of gases or filaments) with almost all of the energy involved producing light instead of heat. The solid-state lighting design would consume one-tenth of the energy of a regular bulb, using semiconductors to produce light instead of gases or filaments. The global lighting market is estimated at $12 billion annually.
© The Vancouver Sun 2006
