ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,477,237, issued on Nov. 18, was assigned to Xerox Corp. (Norwalk, Conn.).
"Lensless near-contact imaging system for micro assembly" was invented by Patrick Yasuo Maeda (San Jose, Calif.), Jeng Ping Lu (Freemont, Calif.) and Eugene Chow (Palo Alto, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A machine vision system and method use lensless near-contact imaging with coherent illumination, or incoherent illumination, and high pixel count large format sensors (e.g., equivalent to at least 20 to 65 mega-pixels) to produce diffraction patterns of the micro-objects or the gray scale images of the micro-objects over a large overall field-of-view of the...