More than a century after their invention, tungsten filaments—the coiled metal wires at the heart of many incandescent light bulbs—continue to be popular. This is despite the growing market for LED ...

Photonic crystals are nanoscopic structures designed to channel light of specific wavelengths while blocking other wavelengths. This ability to control and filter light with great efficiency makes ...

Tungsten-filament bulbs — the most widely used light source in the world — burn hands if unscrewed while lit. The bulbs are infamous for generating more heat than light. Now a microscopic tungsten ...

Philips has announced that its 22-watt LED lightbulb is the first 100-watt tungsten equivalent bulb to have been awarded Energy Star certification. Often referred to as the A21, which is actually just ...

New Delhi: The common yellow bulb of Indian household will soon loose its luster. Modern day LEDs (Light Emitting Diodes) will soon replace them everywhere. This year the production of 100-watt ...

Ottawa's planned ban on incandescent light bulbs will have no impact on Canada's resurgent tungsten mining business, industry players say, because lighting makes up such a small proportion of the ...

PHOENIX -- Saying they were striking a blow for individual rights, a Senate panel voted Tuesday to keep old-fashioned tungsten-filament light bulbs legal in Arizona long after they're banned by ...

Canada’s biggest tungsten miner says it’s not worried about an Ontario government ban on incandescent light bulbs, to take effect by 2012. Stephen Leahy, CEO of Vancouver-based North American Tungsten ...