Patent ID: 7215488
Filing Date: 2007-05-08
Classification: G02B

Abstract:
1. An optical apparatus comprising: a first lens which is moved in a first movable range in an optical axis direction; a second lens which is moved in a second movable range smaller than the first movable range in the optical axis direction; a first linear actuator which includes a first member to which an electrical signal is input and a second member whose length in the optical axis direction is longer than that of the first member, the first and second members being relatively moved in the optical axis direction to drive the first lens; and a second linear actuator which includes a third member to which an electrical signal is input and a fourth member whose length in the optical axis direction is longer than that of the third member, the third and fourth members being relatively moved in the optical axis direction to drive the second lens, wherein the second linear actuator is a vibration type linear actuator which includes a vibrator as the third member on which vibration is produced through an electromechanical energy conversion action and a contact member as the fourth member which is in contact with the vibrator, and the fourth member is moved together with the second lens in the optical axis direction with respect to the third member.