ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,870, issued on July 14, was assigned to California Institute of Technology (Pasadena, Calif.).

"Ultra-miniature spatial heterodyne spectrometer" was invented by Seyedeh Sona Hosseini (Pasadena, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Ultra-miniature spatial heterodyne spectrometers (SHSs) are presented. Ultra-miniature SHSs in accordance with the invention, comprise a beam-splitter and gratings configured to generate a fringe pattern for spectroscopic detection. Many embodiments include input optics and a sensor and are configured in a way to omit collimating optics and imaging optics from the SHS. Compared to conventional SHSs known i...