The common items in this case were “filaments” from LED light bulbs, those meant to mimic the look of clear-glass incandescent light bulbs. [Andypugh] had been looking at them with interest ...
A new study from the University of Michigan (UMich) researchers sheds light on a light bulb that looks similar to an ordinary filament bulb but produces twisted light, known to physicists as ...
The filament is crimped to the Dumet leads and pinched into a stem of glass tubing. A bulb is blown in another piece of tubing and the two are welded together, evacuated with a vacuum pump ...
The bulb produces this twisted form of polarized light due to the intricate engineering of the filament itself. By integrating micro- and nanoscale twists into the tungsten filament structure ...
and PIAA's dual-filament bulb. We also compared their performance with that of two standard bulbs from GE and Helio, costing $20 and $10, respectively, and to the original-equipment (OE ...
Born in Sunderland, he studied chemistry and moved to Tyneside where, after many years of persistent effort, he created the first successful 'incandescent filament electric lamp' - the light bulb.