US 12,267,572 B1
Optical element driving device
Shun Suzuki, Tokyo (JP); and Tomohiko Osaka, Tokyo (JP)
Assigned to MITSUMI ELECTRIC CO., LTD., Tokyo (JP)
Filed by Shun Suzuki, Tokyo (JP); and Tomohiko Osaka, Tokyo (JP)
Filed on Nov. 22, 2024, as Appl. No. 18/956,245.
Application 18/956,245 is a continuation of application No. 17/995,993, granted, now 12,184,962, previously published as PCT/JP2021/012427, filed on Mar. 24, 2021.
Claims priority of provisional application 63/011,322, filed on Apr. 17, 2020.
Int. Cl. H04N 23/55 (2023.01); G02B 13/00 (2006.01); G03B 5/00 (2021.01); H04N 23/57 (2023.01)
CPC H04N 23/55 (2023.01) [G02B 13/009 (2013.01); G03B 5/00 (2013.01); H04N 23/57 (2023.01); G02B 13/0065 (2013.01); G03B 2205/0046 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An optical-element driving device configured to be built in a camera-mounted device, the optical-element driving device comprising:
a movable part configured to hold an optical element;
a housing housing the movable part;
a driving part including an ultrasonic motor and configured to drive the movable part with respect to the housing;
a boosting part including an inductor that boosts an input voltage to be inputted to the driving part and supplies the input voltage to the ultrasonic motor; and
a board part fixed to the housing and on which the inductor is disposed, wherein
the ultrasonic motor includes piezoelectric elements generating vibration by the input voltage and a resonant portion resonating with the vibration of the piezoelectric elements,
the inductor is covered by a cover portion, and
the housing is cut out at a location corresponding to the inductor.