| 摘要 |
PROBLEM TO BE SOLVED: To provide a camera capable of mechanically canceling and correcting the change of the focal position of a photographic lens due to temperature change by using material having the degree of freedom in terms of selection. SOLUTION: The camera is equipped with a lens barrel capable of moving in an optical axis direction while holding the photographic lens, a focusing member capable of moving in a direction nearly orthogonal to the optical axis of the photographic lens and having an abutting part abutting on the abutting part of the lens barrel, and an elastic member fixed on the side wall of the focusing member and also fixed on a specified immovable fixed member. At least either the abutting part of the lens barrel or the abutting part of the focusing member is formed as an inclined surface inclined to the optical axis, and the focusing member is moved in the direction nearly orthogonally intersecting the optical axis by the elongation and contraction of the elastic member due to the temperature change, whereby the lens barrel is moved in the optical axis direction. COPYRIGHT: (C)2003,JPO
|
