US Patent Issued to CANON on Nov. 3 for "Optical system, image pickup apparatus, and lens apparatus" (Japanese Inventor)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,782,681, issued on Nov. 3, was assigned to CANON K.K. (Tokyo).

"Optical system, image pickup apparatus, and lens apparatus" was invented by Takahiro Komiyama (Tochigi, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system includes, in order from an object side to an image side, a first lens having negative refractive power, a second lens having positive refractive power, a third lens having positive refractive power, and a fourth lens having negative refractive power. A first lens surface on the object side of the first lens is aspheric, and the first lens surface has an area in which a curvature that is convex toward the object side inc...