ALEXANDRIA, Va., March 31 -- United States Patent no. 12,588,807, issued on March 31, was assigned to EYEMIKAN BIOTECH INC. (Taipei City, Taiwan).
"Vision test apparatus, method and system and non-transient computer readable recording medium" was invented by Ming-Fu Chen (Taipei City, Taiwan) and Cheng-Hsiung Chen (Taipei City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vision test apparatus includes a hollow housing, a converging lens, and a diverging lens. The converging lens is arranged in the hollow housing, and includes a converging focal length. The diverging lens is arranged in the hollow housing at intervals relative to the converging lens, and includes a diverging focal length. Two opti...