Absolute Metrology Services has over 25 years of experience in high-level interferometry and optical test. AMS measures surface form, radius of curvature, transmitted wavefront error, surface roughness, and more. We confirm that parts meet specification for both manufacturers and end users. Do you have an unusual metrology challenge, turned down by other companies? AMS will develop a unique test configuration at the required accuracy. We build non-interferometric test setups as needed.