Polymer actuator and device equipped with polymer actuator

1. A polymer actuator comprising:

an electrolyte layer; and

a pair of electrodes provided on both surfaces of the electrolyte layer in the thickness direction,

wherein the polymer actuator is deformed when a voltage is applied across the pair of electrodes, and

wherein the polymer actuator includes a support portion and a deformation portion, and the gap between the electrodes in the support portion is larger than the gap between the electrodes in the deformation portion.

2. The polymer actuator according to claim 1 , wherein the thickness of the electrolyte layer in the support portion is thicker than the electrolyte layer in the deformation portion.

3. The polymer actuator according to claim 1 , wherein the thickness of the electrode in the support portion is thicker than the thickness of the electrode in the deformation portion.

4. The polymer actuator according to claim 2 , wherein the thickness of the electrode in the support portion is thicker than the thickness of the electrode in the deformation portion.

5. A device equipped with a polymer actuator comprising:

the polymer actuator of claim 1 ,

wherein when the support portion of the polymer actuator is supported by a conductive fixation member, the polymer actuator is fixed, and a current is supplied to the electrode.

6. The device according to claim 5 , wherein the support portion is supported by applying a pressure thereto so that the thickness of the support portion is thinner than the thickness of the unfixed support portion.