Yl-Qun Li

Title: Yl-Qun Li: Innovator in LED Technology

Introduction

Yl-Qun Li is a prominent inventor based in Danville, CA (US). He has made significant contributions to the field of lighting technology, particularly in the development of phosphor-converted red LEDs and color-tunable multi-LED lighting devices. His innovative work has led to advancements that enhance the versatility and efficiency of lighting solutions.

Latest Patents

Yl-Qun Li holds a patent for a lighting device that includes a first LED with a maximum emission intensity wavelength ranging from 620 nm to 640 nm, a second LED from 500 nm to 565 nm, a third LED from 430 nm to 480 nm, and a fourth LED generating light with a correlated color temperature (CCT) between 1800K and 5000K. The first LED is a Phosphor-Converted LED featuring a chip with a maximum emission intensity wavelength from 400 nm to 480 nm, along with a narrowband red phosphor that has a full width at half maximum (FWHM) of less than 55 nm. The light produced by this device is a combination of emissions from all four LEDs, and the CCT can be adjusted by independently controlling the power supplied to each LED.

Career Highlights

Yl-Qun Li is currently associated with Bridgelux Incorporated, where he continues to push the boundaries of LED technology. His work has not only contributed to the company's innovative product offerings but has also positioned him as a key figure in the industry.

Collaborations

Throughout his career, Yl-Qun Li has collaborated with notable colleagues, including Jingqiong Zhang and Jungang Zhao. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Yl-Qun Li's contributions to LED technology exemplify the impact of innovation in the lighting industry. His patented inventions and collaborative efforts continue to shape the future of efficient and versatile lighting solutions.