US Patent Issued to MITSUBISHI ELECTRIC on July 21 for "Infrared optical system" (Japanese Inventors)

ALEXANDRIA, Va., July 21 -- United States Patent no. 12,687,708, issued on July 21, was assigned to MITSUBISHI ELECTRIC Corp. (Tokyo).

"Infrared optical system" was invented by Wataru Yoshiki (Tokyo), Satoi Kobayashi (Tokyo), Takayuki Nakano (Tokyo) and Takayuki Yanagisawa (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "An infrared optical system includes: a spherical lens unit having an image-forming function as a whole and including one or more spherical lenses that form an image of an incident light beam from a subject; an aperture diaphragm unit that limits transmission of the incident light beam through the spherical lens unit; an aberration correcting plate unit that is disposed at a preceding st...