| 摘要 |
PURPOSE:To switch a finder optical system even in a narrow space, and to make it unnecessary to make a camera large-sized by inclining one of plural finder optical systems and making it escape, and displacing the other, so that they interfere with each other. CONSTITUTION:When a main optical system 3 and a sub-optical system 4 are switched to a telephoto state, a cam plate 53 rotates greatly. An oscillating lever 59 turns counterclockwise, and draws backward the second objective lens 57 and a straight running frame 58. The tip part of an engaging rod 57c contacts the second cam surface 55f of a cam part 55g of a switching driving member 55, and the second objective lens 57 is held in an angularly inclined state around an oscillating shaft 57. Following it, a driving tooth 53c is engaged with a driving tooth 55c, the switching driving member 55 is turned clockwise, and the first objective lens 56 draws an arc around an oscillating shaft 55a and turns clockwise. Subsequently, the tip part of the engaging rod 57c reaches the first cam surface 55e of the cam part 55g, and in the end, the second objective lens 57 turns to the front, the straight running frame 58 is reset in front of the front of the second objective lens 57, and a camera becomes a telephoto state. |
