An LED and a semiconductor laser (or laser LED) work in essentially the same way, that is, light is emitted as electrons and holes combine, with emission wavelength dependent upon the materials used.

Color digital laser and light-emitting diode printers are very similar. Both can print your business documents relatively quickly by melting toner to the paper, and both use a photosensitive drum. The ...

Light can be a powerful tool in skin care, whether it’s an LED facial or a laser treatment for acne. Light therapy can also seem a little mysterious if you’ve never done it before, because light doesn ...

When we think about the onward march of automotive technology, headlights aren’t usually the first thing that come to mind. Engines, fuel efficiency, and the switch to electric power are all more ...

Laser light sources for projectors have their pros and cons. The same is true for LED. The MP1 Max from Dangbei teams them up for the promise of "stunning color accuracy, and enhanced viewing comfort.

Despite digital alternatives, inkjet and laser printers are here to stay. We dispel old prejudices and answer the most frequently asked questions about new technology and opaque subscription and ...

In 1962, 50 years ago today, Nick Holonyak Jr. and his team at GE invented the Light Emitting Diode. While LED lights are almost everywhere today — from bridges to headlights to keychain flashlights ...

The beauty world is buzzing with excitement as Hollywood's elite, including Gwyneth Paltrow, Kate Hudson, Paris Hilton, and Tracee Ellis Ross, are swearing by the LYMA Laser for its remarkable ability ...

In 1962, when he was 33, the scientist Nick Holonyak, Jr., created the first practical visible light-emitting diode. At GE, they called it "the magic one." Someone actually wrote that on the back—here ...