ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,487,448, issued on Dec. 2, was assigned to BROTHER KOGYO K.K. (Nagoya, Japan).
"Scanning optical device" was invented by Koji Abe (Okazaki, Japan), Yoshihiro Oyama (Tokai, Japan) and Junichi Yokoi (Nagoya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A scanning optical device includes a semiconductor laser, a coupling lens, a condenser lens, a deflector, a scanning optical system, a frame, and a first cover. The coupling lens converts light emitted by the first semiconductor laser to a light beam. The light beam received from the coupling lens is concentrated through the condenser lens. The deflector includes a polygon mirror configured to deflec...