US Patent Issued to SEIKO EPSON on June 17 for "Diffractive optical member and virtual image display device" (Japanese Inventor)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,332,467, issued on June 17, was assigned to SEIKO EPSON Corp. (Tokyo).

"Diffractive optical member and virtual image display device" was invented by Hideaki Yajima (Chino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A diffractive optical member includes a hologram element, a support member that supports the hologram element by contacting the hologram element from one side, and a covering film member that is a first film member and covers the hologram element by contacting the hologram element from a side opposite to the one side. The covering film member includes a coupling portion that is in contact with the support member, and the coupling po...