Jinhua Feng

Title: Innovations of Jinhua Feng in Illumination and Measurement Systems

Introduction

Jinhua Feng is a notable inventor based in Sichuan, China. He has made significant contributions to the fields of illumination and measurement systems, holding two patents that showcase his innovative approach to technology. His work is primarily associated with the Chinese Academy of Sciences, where he collaborates with other experts in the field.

Latest Patents

Jinhua Feng's latest patents include an "Illumination field non-uniformity detection system, detection method, correction method, and device." This system is designed to detect non-uniformity in illumination fields through a series of advanced modules. It includes a displacement control module that drives a photodetector and image sensor to move within the illumination field. The illumination signal acquisition module collects various response signals and images, while the data processing module analyzes these signals to create corrected image sensor grayscale matrices. The non-uniformity detection module then characterizes the light intensity distribution within the illumination field.

Another significant patent is the "High accuracy measurement system for focusing and leveling." This system determines off-focus distances and inclinations by measuring the heights of four detection points on a substrate. It employs a dual-channel light intensity modulation method to achieve nanoscale accuracy in focusing and leveling, effectively eliminating errors caused by fluctuations in light intensity.

Career Highlights

Jinhua Feng's career is marked by his dedication to research and innovation at the Chinese Academy of Sciences. His work has led to advancements in measurement systems that are crucial for various applications in technology and industry. His patents reflect a deep understanding of optical systems and their practical applications.

Collaborations

Jinhua Feng has collaborated with notable colleagues, including Xiangang Luo and Lixin Zhao. These partnerships have fostered a collaborative environment that enhances the research and development of innovative technologies.

Conclusion

Jinhua Feng's contributions to illumination and measurement systems demonstrate his expertise and commitment to innovation. His patents not only advance technology but also pave the way for future developments in the field.