US Patent Issued to OLYMPUS on March 25 for "Optical system, method for manufacturing optical system, and endoscope" (Japanese Inventor)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,256,892, issued on March 25, was assigned to OLYMPUS Corp. (Tokyo).

"Optical system, method for manufacturing optical system, and endoscope" was invented by Takehiro Miki (Fuchu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system includes a plurality of lenses. The plurality of lenses have refractive index distributions in which a refractive index changes in directions orthogonal to optical axes. The optical axes of the plurality of lenses are disposed on the same straight line as each other. The plurality of lenses are manufactured on the basis of same design values relating to an on-axis refractive index and a refractive index dis...