Reducing blue light with a new type of LED that won't keep you up all night. ScienceDaily . Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2021 / 04 / 210428140852.htm ...

Most LED bulbs rely on blue light-emitting diodes, with a fine-tuned set of phosphors that are activated by blue light and “convert” it to a spectrum that forms white.

We reached out to two dermatologists to find out how blue- and red-light therapy are supposed to work, whether they’re effective for acne, and which blue-light at-home treatments they recommend.

The other LED, for evening use, emitted blue wavelengths near 450 nm, outside the range that disturbs sleep. Then the researchers built these two new LEDs into bulbs. Like conventional bulbs, they ...

A white LED light is easy to make from a blue one. Engineers use a blue LED to excite some kind of fluorescent chemical in the bulb. That converts the blue light to white light.

Specialists warn that if exposed to it at night, “blue light” from some LEDs can disrupt the body’s production of melatonin, a hormone that influences sleep.

One is to combine tiny LED lights that each emit red, green or blue into a single big device. The other is to use only blue LEDs but coat them with a type of fluorescent substance called phosphor.

With the invention of the first LED featuring a red color, it seemed only a matter of time before LEDs would appear with other colors. Indeed, soon green and other colors joined the LED revolution,… ...

The "blue light" in LED lighting can cause damage to the eye's retina and also disturb natural sleep rhythms, according to a new report. The French Agency for Food, Environment and Occupational ...