Chang-Han Chen

Title: Chang-Han Chen: Innovator in LED Technology

Introduction

Chang-Han Chen is a prominent inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of light-emitting diode (LED) technology. With a total of 5 patents to his name, Chen continues to push the boundaries of innovation in this area.

Latest Patents

One of his latest patents is for an LED package structure. This innovative design includes a circuit board, a reflective cup, a LED chip, and a lens structure. The reflective cup is mounted on the circuit board, forming a concave cup with an opening. It features a first metal ring within the concave cup. The LED chip is positioned on the circuit board and inside the concave cup. The lens structure has a second metal ring that joins the first metal ring to cover the opening.

Another notable patent is for a light-emitting device. This device comprises a panel substrate, a light-emitting chip, and a light extracting layer. The light-emitting chip is placed on the panel substrate, while the light extracting layer covers both the chip and the substrate. The side portion of the light extracting layer and the origin define a circle that is tangential to the surface of the side portion, with a radius that satisfies a specific formula.

Career Highlights

Chang-Han Chen is currently employed at Lextar Electronics Corporation, where he continues to develop cutting-edge technologies in the LED sector. His work has been instrumental in advancing the efficiency and effectiveness of light-emitting devices.

Collaborations

Throughout his career, Chen has collaborated with talented individuals such as Chun-Peng Lin and Chih-Hao Lin. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Chang-Han Chen is a key figure in the field of LED technology, with a strong portfolio of patents that reflect his innovative spirit. His contributions continue to shape the future of lighting solutions.