Department of Materials Science and Engineering, Yonsei University, Seoul 03722, Republic of Korea ...

Lasers, LEDs and light sources are devices that create light. LEDs (light emitting diodes) convert an electrical current into light using spontaneous emission in optically active semiconductors.

School of Materials Science and Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China ...

Microscale light-emitting diodes (micro-LEDs) are emerging as a next-generation display technology for optical communications, augmented and virtual reality, and wearable devices. Metal-halide ...

LED light wands, or light sticks, provide an effective (and relatively affordable) alternative to a photographer’s flashgun or a videomaker’s stand-mounted lamp. You don’t need to sync a light wand ...

Quantum computing holds the promise of outperforming classical computing on some optimization and data processing tasks. The creation of highly performing large-scale quantum computers, however ...

Learn more› By Kaitlyn Wells and Zoe Vanderweide If you believe the hype, blue-light blocking glasses will prevent headaches, decrease eyestrain, and help you sleep like a baby. But do they work?

CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise.

Do blue light glasses actually work? Though they claim to reduce eyestrain and headaches and help you sleep better, no robust research confirms that blue light-blocking glasses support your eye ...

Amazing!” Small but mighty, this compact lamp can imitate daylight by emitting full-spectrum light. But unlike actual sunlight, the LED lights in this device don’t emit harmful UV rays.

It’s no secret that light impacts our wellbeing. Watching the sunset can make us sleepy; waking in a bright room can give us energy. It seems that light works with—and, sometimes, against ...