ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,399,358, issued on Aug. 26, was assigned to ZHEJIANG UNVIERSITY (Zhejiang, China).

"Phase retrieval detection device and method based on diffraction information of fresnel zone plate" was invented by Jian Bai (Zhejiang, China), Binjie Lu (Zhejiang, China), Lei Zhao (Zhejiang, China), Xiao Huang (Zhejiang, China) and Jing Hou (Zhejiang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A phase retrieval detection device based on diffraction information fusion of a Fresnel zone plate (FZP) (7) is provided, including a laser (1), an attenuation mirror (2), a micro-objective (3), a pinhole filter (4), a collimating objective (5), an element (6) to be det...