Highest precision, modern technology and international presence – that is what the name Mahr has stood for, for more than 160 years. Today, the Mahr Group, with its three business units Metrology, Mixing & Metering, and Rotary Stroke Bearings, is active worldwide in a wide range of demanding industries, such as automotive, mechanical engineering, medical technology and electronics. Mahr also has the right metrology in its portfolio for the optical industry. High-precision optics such as spheres, aspheres, freeforms and special optics can only be produced economically and to a high quality throughout the entire production process if all sub-steps are sustainably stable. This is precisely where in-process roughness testing with production metrology from Mahr proves its worth.