US Patent Issued to NIKON on Feb. 17 for "Ophthalmic optical system, ophthalmic device, and ophthalmic system" (Japanese Inventor)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,148, issued on Feb. 17, was assigned to NIKON Corp. (Tokyo).

"Ophthalmic optical system, ophthalmic device, and ophthalmic system" was invented by Masahiro Mizuta (Yokohama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system is capable observing a peripheral field away from a visual axis and includes a reflection mirror unit forming an image of an examined eye with two concave mirrors in an opposing arrangement facing each other at the examined eye side, this being the upstream side, of a first optical unit and a second optical unit. In the reflection unit there is a conjugate relationship between one focal point thereof and anot...