This branch of skincare can feel like a maze of jargon and two terms that are often tossed around are low-level laser therapy ...

Lasers are known for the monochromatic nature of their light, so much so that you might never have thought there could be such a thing as a white laser. But in the weird world of physics ...

However, for many other applications, especially those requiring intense laser light — such as marking or cutting metals — they are simply not up to task. The chief problem is their poor beam ...

The receiver module has a phototransistor to pick up the infrared laser light, and an LM386 audio amplifier to generate the audio signal sent to a pair of headphone. The need to be well-aligned ...