Since it was invented by Thomas Edison in 1879, the incandescent filament lamp had played the leading part in the illumination field for more than a century. However, in the 1990s, Nichia Corporation ...

Since it was invented by Thomas Edison in 1879, the incandescent filament lamp had played the leading part in the illumination field for more than a century. However, in the 1990s, Nichia Corporation ...

Stanley Electric has patented a semiconductor light emitting device that emits mixed color light using a semiconductor light emitting element and a fluorescent body layer containing specific ...

LG Innotek, a company that makes smartphone parts such as mini vibration motors, LCD modules, light-emitting diode (LED), camera modules, protection circuit modules, and more is selling patents and ...

Citizen Watch has been granted a patent for a light emitting device that includes multiple light emitting elements and phosphor mixtures. The device emits light in different wavelength ranges, ...