Ping-Ju Chang

Title: Innovations of Ping-Ju Chang

Introduction

Ping-Ju Chang is a notable inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of lens technology, holding two patents that showcase his innovative approach to automatic focus mechanisms.

Latest Patents

One of his latest patents is titled "Method and apparatus for adjusting-free automatic focus." This invention involves a method for achieving automatic focus without the need for adjustments. It includes mounting a lens in a lens holder seat using an adhesion scheme, setting the focus position for a scene at infinity distance, and moving the lens to ensure that the image focuses correctly on the sensor integrated circuits.

Another significant patent is the "Step response suppression structure of lens driving apparatus." This invention is designed for a lens driving apparatus that consists of a fixed portion and a movable portion. The structure includes a cantilever element and a damping element, which work together to reduce the setting time of the movable portion during operation.

Career Highlights

Ping-Ju Chang is currently employed at Topray MEMS Inc., where he continues to develop innovative solutions in lens technology. His work has contributed to advancements in automatic focusing systems, enhancing the performance of various optical devices.

Collaborations

He has collaborated with notable colleagues, including Chin-Sung Liu and Yi-Jung Chen, to further his research and development efforts in the field.

Conclusion

Ping-Ju Chang's contributions to lens technology through his patents demonstrate his innovative spirit and commitment to advancing optical systems. His work at Topray MEMS Inc. continues to influence the industry positively.