Zong-Han Yu

Title: Zong-Han Yu: Innovator in White Light Emitting Devices

Introduction

Zong-Han Yu is a prominent inventor based in Taoyuan, Taiwan. He has made significant contributions to the field of light-emitting devices, holding a total of 3 patents. His innovative work focuses on enhancing the efficiency and quality of white light sources.

Latest Patents

One of his latest patents is a white light emitting device that incorporates a blue LED chip with a dominant emission wavelength of about 440-465 nm. This device features a phosphor layer designed to be excited by the blue LED chip's dominant emission wavelength. The phosphor layer consists of three different phosphors, each with specific peak emission wavelengths, ensuring a broad spectrum of light.

Another notable patent is a white light source device that includes a first light-emitting element and at least one second light-emitting element. The first element emits a first light beam, while the second elements emit a second light beam, which has a different emission spectrum. The combination of these beams results in a white light beam with a color fidelity index greater than 90, showcasing the device's high-quality light output.

Career Highlights

Zong-Han Yu is currently employed at Lextar Electronics Corporation, where he continues to develop innovative lighting solutions. His work has positioned him as a key figure in the advancement of white light technology.

Collaborations

Throughout his career, Zong-Han has collaborated with notable colleagues, including Cheng-Ping Chang and Kuo-Chan Hung. These partnerships have contributed to the successful development of his patented technologies.

Conclusion

Zong-Han Yu's contributions to the field of light-emitting devices demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of light technology and its applications, making him a significant figure in the industry.