US Patent Issued to TOPPAN Holdings on Sept. 1 for "Optical device for aerial display apparatus, and aerial display apparatus" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,724,291, issued on Sept. 1, was assigned to TOPPAN Holdings Inc. (Tokyo).

"Optical device for aerial display apparatus, and aerial display apparatus" was invented by Yasuhiro Daiku (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An aerial display apparatus includes: a display device configured to display an image; and an optical device arranged to receive light from the display device and reflecting the light from the display device to a side opposite to the display device. The optical device includes a planar base member, and a plurality of optical elements provided below the base member as viewed from a viewer, each extending in a first directio...