Yinggang Qiu

Title: **Innovative Contributions of Yinggang Qiu: A Focus on Liquid Crystal Technologies**

Introduction

Yinggang Qiu is an esteemed inventor based in Shanghai, China, known for his significant contributions to optical technologies. With a keen focus on innovations in liquid crystal applications, he has developed a notable patent that highlights his ingenuity in the field.

Latest Patents

Yinggang Qiu holds a patent for a "Liquid crystal based optical switch utilizing diffraction." This innovative optical switch is designed with a cell that consists of photopolymer dispersed in a liquid crystal, securely sandwiched between two transparent plates. The patent describes a method where a grating is recorded using two plane wave laser beams interacting at an angle. This established grating allows incoming beams to be diffracted based on its spatial frequency. An intriguing feature of this invention is the application of an electric signal across the cell, which alters the refractive index of the liquid crystal to match that of the photopolymer, effectively erasing or overwriting the grating and rendering the cell transparent. The unique functionality relies on whether an electrical signal is applied, providing a highly efficient switching mechanism.

Career Highlights

Yinggang Qiu is associated with Bao Tong International Telecommunication Holdings Limited, where he works alongside fellow innovators Songlin Zhuang and Lingjuan Gu. His career is marked by a commitment to advancing optical technologies, particularly in the development of efficient and effective optical switches.

Collaborations

Throughout his career, Yinggang has collaborated with prominent professionals in the field, including his coworkers, Songlin Zhuang and Lingjuan Gu. These collaborative efforts have likely contributed to the successful evolution of his innovative ideas and patents, fostering an environment of shared expertise and knowledge in liquid crystal technologies.

Conclusion

Yinggang Qiu exemplifies the spirit of innovation, as demonstrated by his groundbreaking patent and contributions to optical technology. His work with the liquid crystal based optical switch is a testament to the potential for advancing telecommunications through novel ideas. As the demands for advanced optical systems continue to grow, inventors like Yinggang will undoubtedly play a crucial role in shaping the future of technology.