Patent ID: 6166844
Filing Date: 2000-12-26
Classification: G02B

Abstract:
An image scanning device, comprising:two guide rods arranged in the image scanning device;a first movable mirror module provided with a rope holder;a second movable mirror module provided with a guide wheel;a transmission mechanism comprising a driving motor, a number of auxiliary guide wheels for moving the first movable mirror module and the second movable mirror module along the guide rods;a transmission rope, one end of the transmission rope being fixed at a first locating point in the image scanning device, and the other end of the transmission rope being first wound on the guide wheel of the second movable mirror module and then held by the rope holder of the first movable mirror module and then sequentially traveled through the auxiliary guide wheels and the driving motor and then wound back onto the guide wheel of the second movable mirror module and finally fixed at a second locating point in the image scanning device; anda section of the transmission rope between the rope holder of the first movable mirror module and the guide wheel of the second movable mirror module and between the guide wheel of the second movable mirror module and the first locating point being formed by two transmission ropes.