Patent ID: 7190465

Claim:
A 3-D laser measurement system including an emitter for emitting a measuring beam, a receiver for processing the measuring beam after reflection by an object and a deflection apparatus that deflects the measuring beam emitted by the emitter for scanning the object, the deflection apparatus comprising: a rotatably mounted mirror for orienting the measuring beam, the mirror being mounted in a rotary head adapted to be rotated by a rotary drive mechanism, and being continuously rotatable about a rotation axis parallel to an axis of the measuring beam impinging on the mirror; wherein: the emitter, the receiver and the deflection apparatus are mounted in a measuring head that is rotatable about an axis of rotation that is substantially orthogonal to the rotation axis of the mirror; the rotary head (1) has a housing jacket with a substantially cylindrical, unilaterally open internal cavity in which the mirror is provided, (2) comprises a non-reflecting disk constituting an exit window, and (3) extends between two support legs of a housing; the non-reflecting disk is inclined with respect to the rotation axis of the mirror by a predetermined angle; and the measuring beam exits the system from the internal cavity of the rotary head.