Patent ID: 6351907
Filing Date: 2002-03-05
Classification: F41G,G02B

Abstract:
An adjustment mechanism for a telescopic rifle sight of the type including an elongate tubular housing having a longitudinal axis and a movable optical element mounted within the housing, comprising:a cam hub mounted to the housing for rotation about an axis of rotation, the cam hub positioned so that the axis of rotation is substantially perpendicular to the longitudinal axis, the cam hub including a drive face and a spiral cam track formed in the drive face around the axis of rotation; and an actuator slidably mounted for movement along the longitudinal axis of the housing and including a cam follower operably engaged in the spiral cam track so that the actuator moves generally along the longitudinal axis in response to rotation of the cam hub, the actuator operatively connected to the optical element to drive the optical element in response to rotation of the cam hub.