US Patent Issued to Canon on May 6 for "Optical system, image pickup apparatus, and projection apparatus" (Japanese Inventor)

ALEXANDRIA, Va., June 10 -- United States Patent no. 12,292,557, issued on May 6, was assigned to Canon K.K. (Tokyo).

"Optical system, image pickup apparatus, and projection apparatus" was invented by Kana Kobayashi (Tochigi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system includes an entrance unit, a first reflective surface, a second reflective surface, a third reflective surface, and an exit unit. The entrance unit is rotationally symmetric around a central axis. Incident light from the entrance unit intersects the central axis and enters the first reflective surface. Reflected light from the first reflective surface enters the second reflective surface without intersecting the cent...