Yoon Seok Lee

Title: Yoon Seok Lee: Innovator in Light Emitting Technology

Introduction

Yoon Seok Lee is a prominent inventor based in Ansan, South Korea. He has made significant contributions to the field of light emitting devices, holding a total of 2 patents. His work focuses on improving the efficiency and functionality of lighting technologies.

Latest Patents

Yoon Seok Lee's latest patents include a light emitting device and a driving circuit thereof. This innovative light emitting device comprises a first light emitting unit and a second light emitting unit connected in series, along with a PTF unit connected in parallel with the first unit. The design allows the second light emitting unit to operate before the first upon application of an AC voltage source. This configuration reduces total harmonic distortion and flickering while improving power factor and optical efficiency. Additionally, he has developed a dimmer for light emitting devices that utilizes an alternating voltage source. This dimmer features a switch that responds to a control signal, a current detector for monitoring electric current, and a controller that manages the dimming process.

Career Highlights

Yoon Seok Lee is currently employed at Seoul Semiconductor Co., Ltd., where he continues to innovate in the field of lighting technology. His work has garnered attention for its practical applications and advancements in energy efficiency.

Collaborations

He collaborates with talented coworkers, including Sang Min Lee and Hyun Gu Kang, who contribute to the development of cutting-edge lighting solutions.

Conclusion

Yoon Seok Lee's contributions to light emitting technology exemplify his commitment to innovation and efficiency. His patents reflect a deep understanding of electrical engineering and a drive to enhance the functionality of lighting devices.