ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,651, issued on Jan. 27, was assigned to Canon K.K. (Tokyo).
"Display optical system, display apparatus, and image pickup apparatus" was invented by Fumihiro Shinobu (Tochigi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A display optical system configured to enable an image displayed on a display element to be observed includes, in order from a display element side to an observation side, a first lens having positive refractive power, a second lens having positive refractive power, a third lens having negative refractive power, a fourth lens having positive refractive power, and a fifth lens having positive refractive power. Each of the firs...