US Patent Issued to SEIKO EPSON on May 13 for "Head-mounted display apparatus, optical unit, and manufacturing method of optical unit" (Japanese Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,298,520, issued on May 13, was assigned to SEIKO EPSON Corp. (Tokyo).

"Head-mounted display apparatus, optical unit, and manufacturing method of optical unit" was invented by Takuya Ikeda (Shiojiri, Japan), Toshiaki Miyao (Chino, Japan) and Toshiyuki Noguchi (Shiojiri, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An HMD includes a first display element, a holder configured to hold the first display element, a first projection optical system configured to project an image formed on the first display element, a barrel which is a case configured to house the first projection optical system in a positioned state, and a dust-proof structure configure...