Patent ID: 7280287
Filing Date: 2007-10-09
Classification: G02B

Abstract:
1. A zoom lens apparatus comprising: a first lens group and a second lens group each arranged on an optical axis; supporting unit that supports the first lens group and the second lens group so that each of the first and second lens groups can move in a direction of the optical axis; a motor that is regularly rotated when the first lens group and the second lens group are moved to wide angle positions and that is reversely rotated when the first lens group and the second lens group are moved to telephoto positions; a cam drive gear that is rotated in a first direction by regularly rotating the motor and that is rotated in a second direction by reversely rotating the motor; a zoom cam rotatably and slidably supported on a rotational axis in parallel with the optical axis, the zoom cam being connected and engaged with the first lens group and the second lens group to move in the optical axis direction; and a connecting and engaging mechanism between the cam drive gear and the zoom cam, wherein