Dong-ming Li

Title: Innovations of Dong-ming Li in LED Technology

Introduction

Dong-ming Li is a prominent inventor based in Chengdu, China. He has made significant contributions to the field of lighting technology, particularly in the development of white light emitting diode (LED) devices. With a total of 5 patents to his name, Li's work has garnered attention for its innovative approach to LED lighting.

Latest Patents

One of Dong-ming Li's latest patents is a white LED lighting device driven by pulse current. This device consists of blue, violet, or ultraviolet LED chips, along with blue afterglow luminescence materials A and yellow luminescence materials B. The weight ratio of these materials is carefully balanced, ranging from 10-70 wt % for the blue afterglow luminescence materials A to 30-90 wt % for the yellow luminescence materials B. The device operates by driving the LED chips with a pulse current that has a frequency of not less than 50 Hz. This innovative design allows the light to be sustained even when the excitation light source disappears, effectively eliminating fluctuations in LED light output caused by current variations. Additionally, the use of pulse current helps maintain the LED chips in an intermittent work state, addressing the issue of chip heating.

Career Highlights

Dong-ming Li is currently associated with Sichuan Sunfor Light Co., Ltd., where he continues to push the boundaries of LED technology. His work has not only advanced the field but has also contributed to the development of more efficient and reliable lighting solutions.

Collaborations

Li has collaborated with notable coworkers, including Ming Zhang and Kun Zhao, who have also contributed to the advancements in LED technology.

Conclusion

Dong-ming Li's innovative work in the field of LED lighting exemplifies the potential of modern technology to enhance everyday life. His patents reflect a commitment to improving lighting efficiency and reliability, making significant strides in the industry.