ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,487,172, issued on Dec. 2, was assigned to Tsinghua University (Beijing) and HON HAI PRECISION INDUSTRY Co. LTD. (New Taipei, Taiwan).

"Fourier transform spectrometer applicable in an array of coherent light sources" was invented by Li-Wen Lai (Beijing), Peng Liu (Beijing), Duan-Liang Zhou (Beijing), Qun-Qing Li (Beijing) and Shou-Shan Fan (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a Fourier transform spectrometer applicable in an array of coherent light sources, comprising: a light source, a light transmission device, a control circuit, a detector, an amplifying circuit, and a computer. The control circuit i...