| 摘要 |
An actuator of the present invention includes a holder 8 for holding a lens 13 ; an upper guide 3 and a base 9 for supporting the holder 8 so that the holder 8 can move in the optical axis direction of the lens 13 ; and spherical bodies 2 , disposed in spaces between the holder and the upper guide 3 and between the holder 8 and the base 9 , which are able to rotate in the spaces, respectively, the upper guide 3 and the base 9 supporting the holder 8 via the spherical bodies 2 . This makes it possible to provide a compact and slim actuator excellent in impact resistance.
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