US 11,754,801 B2
Optical driving apparatus and optical apparatus
Ryo Abe, Chiba (JP)
Assigned to CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Feb. 18, 2021, as Appl. No. 17/178,547.
Claims priority of application No. 2020-026594 (JP), filed on Feb. 19, 2020.
Prior Publication US 2021/0255416 A1, Aug. 19, 2021
Int. Cl. G02B 7/04 (2021.01); G03B 17/14 (2021.01)
CPC G02B 7/04 (2013.01) [G03B 17/14 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An optical driving apparatus comprising:
an optical element holder configured to hold an optical element;
an actuator configured to drive the optical element holder in an optical axis direction;
a first rolling member and a second rolling member each fixed rollably to the optical element holder;
a first guide member configured to contact the first rolling member and to guide the optical element holder in the optical axis direction;
a second guide member configured to contact the second rolling member and to restrict the optical element holder from rotating around the first guide member;
a first biasing member configured to generate a first biasing force that biases the optical element holder so that the first rolling member is pressed against the first guide member; and
a second biasing member configured to generate a second biasing force that biases the optical element holder so that the second rolling member is pressed against the second guide member,
wherein the first biasing force biases the optical element holder toward the first guide member without biasing the optical element holder toward the second guide member, and
wherein a reaction force of the second biasing force acts on the actuator.