US Patent Issued to Bridgelux on April 7 for "High luminous efficacy phosphor converted white LEDs" (California Inventors)

ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,409, issued on April 7, was assigned to Bridgelux Inc. (Fremont, Calif.).

"High luminous efficacy phosphor converted white LEDs" was invented by Gang Wang (Sunnyvale, Calif.) and Yi-Qun Li (Danville, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A white light emitting device comprises: an LED that generates excitation light of wavelength from 420 nm to 480 nm; and photoluminescence materials that generate light with a peak emission wavelength from 500 nm to 650 nm comprising a broadband phosphor, and a manganese-activated narrowband red fluoride phosphor with a peak emission wavelength from 628 nm to 640 nm and a full width at half maximum o...