Patent ID: 8950078
Filing Date: 2015-02-10
Classification: G01B

Abstract:
1. An apparatus for inspecting a measurement object, comprising a workpiece support for supporting the measurement object and a measuring head carrying an optical sensor, wherein the measuring head and the workpiece support are movable relative to one another, wherein the optical sensor has a objective and a camera, which is designed to capture an image of the measurement object through the objective, wherein the objective has a light entrance opening and a light exit opening, wherein the objective has a multitude of lens-element groups which are arranged in the objective between the light entrance opening and the light exit opening one behind another along a longitudinal axis of the objective, and wherein the apparatus furthermore comprises a reflection element and a calibration arrangement, wherein the reflection element can selectively be introduced into a beam path running through the objective to the camera, in order to couple the calibration arrangement into the beam path to the camera by means of the reflection element.