| 摘要 |
A drive mechanism and a drive device which have an SMA actuator applied thereto, wherein the drive mechanism is configured in such a manner that the size of a constituent component contained within a driven part can be increased to enable the driven part to be moved stably and wherein the drive device is configured in such a manner that the diameter of a lens mounted to a lens unit can be increased to enable the lens unit to be smoothly displaced in the optical axis direction. The drive mechanism and the drive device are configured in such a manner that a drive support point for a lever member is provided at a corner of an affixed section, a guide body is provided to a second corner, which faces said corner, so as to protrude from the body section of the driven part, the guide body is supported slidably, and the drive mechanism and the drive device are provided with a drive guide section provided with a pressing spring for pressing the guide body.
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