Optical Device
First Claim
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1. An optical device comprising:
- a lens holder that holds a lens and is movable in the optical-axis direction of the lens; and
an actuator that moves the lens holder in the optical-axis direction, the actuator including an actuator element composed of an electroactive polymer, an actuator-element holder that holds the actuator element, a mechanism that applies prestrain to the actuator element, and a connecting member that connects the lens holder and the actuator, wherein a connecting portion of the connecting member is disposed adjacent to the side surface of the actuator.
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Abstract
An optical device includes a lens holder that holds a lens and is movable in the optical-axis direction of the lens, and an actuator that moves the lens holder in the optical-axis direction. The actuator includes an actuator element composed of an electroactive polymer, an actuator-element holder that holds the actuator element, a mechanism that applies prestrain to the actuator element, and a connecting member that connects the lens holder and the actuator. Herein, a connecting portion of the connecting member is disposed adjacent to the side surface of the actuator.
17 Citations
6 Claims
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1. An optical device comprising:
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a lens holder that holds a lens and is movable in the optical-axis direction of the lens; and
an actuator that moves the lens holder in the optical-axis direction, the actuator including an actuator element composed of an electroactive polymer, an actuator-element holder that holds the actuator element, a mechanism that applies prestrain to the actuator element, and a connecting member that connects the lens holder and the actuator, wherein a connecting portion of the connecting member is disposed adjacent to the side surface of the actuator. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification