ALEXANDRIA, Va., July 16 -- United States Patent no. 12,364,071, issued on July 15, was assigned to Bridgelux Inc. (Fremont, Calif.).
"Light emitting device including multiple photoluminescence materials" was invented by Tao Xu (Fremont, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An exemplary white light emitting device may include first and second LEDs operable to generate excitation light having a dominant wavelength in a range from 440 nm to 480 nm, where the first LEDs and second LEDs are mounted on a substrate; a first photoluminescence material which emits light having a peak emission wavelength in a range from 500 nm to 590 nm in response to the excitation light; and a second photoluminesce...