US 12,320,971 B2
Optical scanning device, driving method of optical scanning device, and image drawing system
Hirotoshi Yoshizawa, Kanagawa (JP); Shinichiro Sonoda, Kanagawa (JP); Yoshikazu Hishinuma, Kanagawa (JP); and Nobuya Tanaka, Kanagawa (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on May 6, 2022, as Appl. No. 17/738,515.
Claims priority of application No. 2021-092418 (JP), filed on Jun. 1, 2021.
Prior Publication US 2022/0382043 A1, Dec. 1, 2022
Int. Cl. G02B 26/08 (2006.01); G02B 26/10 (2006.01); H02K 1/12 (2006.01); H02K 1/34 (2006.01); H04N 9/31 (2006.01)
CPC G02B 26/0858 (2013.01) [G02B 26/10 (2013.01); H02K 1/12 (2013.01); H02K 1/34 (2013.01); H04N 9/3129 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system having an optical scanning device comprising:
a mirror portion that has a reflecting surface on which an incidence ray is reflected;
a first actuator that causes the mirror portion to swing around a first axis which is in a plane including the reflecting surface at a time of a standstill of the mirror portion;
a second actuator that causes the mirror portion to swing around a second axis which is in the plane including the reflecting surface at the time of the standstill of the mirror portion and intersects with the first axis; and
at least one processor,
wherein the processor is configured to
provide a first driving signal having a first driving frequency to the first actuator,
provide a second driving signal having a second driving frequency to the second actuator, and
derive a first driving condition of the first actuator under which the first driving frequency is less than a first resonance frequency around the first axis.