Once the standard in the United States, the sealed-beam headlamp was a bit odd because of the gas-filled glass housing. There's no bulb to ... the blue laser beam into white light for the road ...

Tungsten filaments, similar to the kind found in household incandescent light bulbs, were finally settled ... t planning to shoot flesh cutting laser beams down the road. Rather the laser beams ...

Using a novel method, beams of laser light can be deflected using air alone ... which corresponds to the power of around two billion LED bulbs. Lasers of this and even higher power classes ...

To put the energy output in perspective, a big filament light bulb uses 100 watts. The optical amplifier output is 50 billion watts of optical power, Fischer said. "If a laser beam is intense ...