Abstract
A new method for measuring the radius of curvature (ROC) of an optical surface having a large radius is proposed. The method combines a Fizeau interferometer and a specially designed zoom lens to form a compact and convenient test setup, so that measurement of the curvatures for both concave and convex surfaces having a large ROC can be done in a simple and quick way. The design of the zoom lenses for this application, principle of the measurement, and calibration of the zoom lenses are discussed. By means of the proposed method, radii of 1.5 m to infinity, concave or convex surfaces, can be measured in compact setups efficiently. The accuracy of the measurements can reach up to 0.04% for a surface having a radius of 10 m.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
