US Patent Issued to APOGEE OPTOCOM on May 5 for "Optical filter and method of producing the same" (Taiwanese Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,619,017, issued on May 5, was assigned to APOGEE OPTOCOM Co. LTD. (Tainan City, Taiwan).

"Optical filter and method of producing the same" was invented by Chi-Ming Yu (Tainan City, Taiwan), Zong Han Li (Tainan City, Taiwan) and Chin-Pin Yeh (Tainan City, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to an optical filter and a method of producing the same. In the producing method, a thermal evaporation deposition process of a sacrificial layer, and depositions process of a base layer and a dielectric stack layer are sequentially performed on a substrate having a trench with a specific width, so that the base layer and...