| 摘要 |
PURPOSE:To shorten a focusing operation time so as to miss no shutter chance, by providing a lens moving member which is moved by energized spring force, and an accelerating member for energizing said member. CONSTITUTION:A titled device is constituted by providing a lens extending member 12 which is released from detainment by a detaining member, from a state detained by the detaining member by pawls 12c, 14c, changed against spring force of the first spring 12', and moves in accordance with force of the spring 12', and a cover extending member 5 which is energized by the second spring 26, and also is made to press-contact this lens extending member 12 only in the beginning of movement of the lens extending member 12, so that the lens extending member 12 is energized by force of the spring 26. |
