New York Magazine

Do LED Skin-Care Devices Even Work?

If you’ve spent even five minutes on the beauty side of TikTok, you’ve undoubtedly come across an influencer wearing a Darth Vader–style mask with light emanating from its perimeters or waving a ...

A mechanical blue LED: Stretching GaN shifts light from UV to blue without changing chemistry

A research team from the Faculty of Engineering at the University of Hong Kong (HKU) has successfully used mechanical ...

Eight best LED masks Australia: These are the products that will give you glowing skin

While many beauty insiders wax lyrical about the benefits of professional LED treatments, not everyone has the time and money ...

'My acne is less painful and less inflamed' shopper says after using 17% off LED mask

LED face masks lead the way in popularity and demand, with thousands available at varying price points. Shoppers with a ...
Electronic Design

The Elusive Blue LED: How Did Researchers Finally Triumph?

It’s hard to believe that the first blue LED didn’t arrive until 1993. They look simple, but looks are deceiving (Fig. 1). 1. Image showing a blue InGaN-based LED with gold wire contacts (0.4 × 0.4 mm ...