The devices use a 390-nm LED based on indium gallium nitride to activate a red-green-blue-emitting phosphor. By carefully balancing the composition of the phosphor, Toshiba is able to vary and control ...

“Of all the colors that make up this spectrum, red light has become a cornerstone of LED therapy,” Maxfield says. “Red light, due to the longer wavelength, penetrates deep within the ski ...

Some QSOs are dust-reddened, hence dubbed red quasars ... 0000 and to better understand the emission from this source in general, a group of astronomers led by Takuma Izumi of the National ...