| 摘要 |
PURPOSE:To prevent a range adjusting member such as a manual focusing distance ring from being moved even at the time of autofocusing by providing the titled camera with an autofocusing driving means, a manual focusing driving means, an optical system moving means, and a clutch means. CONSTITUTION:A focusing detecting element 28 rotates a motor until the quantity of incident light is maximized by a lens L and the rotation rotates a turning frame (optical system moving means) 4 through a decelerating intermediate gear array 34, a focusing driving shaft 30, rotary driving transmitting gears 31, 32, a focusing driving shaft 20, gears (autofocusing means) 21, 8. Consequently, a mirror barrel 2 having a helicoil screw 3 is automatically moved in the front and back direction, and when the lens L is reached a focusing position, the mirror barrel 2 is stopped by the stop of rotation of the motor 33. At the time of autofocusing, a gear (manual focusing driving means) 14 of a manual distance adjusting member 12 is not engaged with the gear 8 of the frame 4, so that the gear 14 is not turned. In case of executing focusing operation manually, when the member 12 is pressed a projecting part (clutch means) 25 presses a gear 21 by pressing the member 21, the gear 14 is engaged with the gear 8, so that the frame 4can be rotated and adjusted. |
