| 摘要 |
PROBLEM TO BE SOLVED: To provide a camera capable of mechanically cancelling and correcting the change of the focal position of a photographic lens due to a change in temperature by using materials having a degree of freedom in terms of selection. SOLUTION: The camera is provided with: a lens barrel which is made movable in an optical axis direction while holding the photographic lens; an expansion member having a fixed base part and expanding and contracting in accordance with the change in temperature; and a lens barrel moving member which is rotated around the supporting shaft when the expansion/contraction force of the expansion member is applied on one end of the lens barrel moving member and which moves the lens barrel in the optical axis direction at the other end. COPYRIGHT: (C)2003,JPO
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