Vertical interferometer workstation for testing large spherical optics

B. Truax

doi:10.1117/12.2028726

15 October 2013 Vertical interferometer workstation for testing large spherical optics

B. Truax

Proceedings Volume 8884, Optifab 2013; 88840W (2013) https://doi.org/10.1117/12.2028726
Event: SPIE Optifab, 2013, Rochester, New York, United States

Abstract

The design of an interferometer workstation for the testing of large concave and convex spherical optics is presented. The workstation handles optical components and mounts up to 425 mm in diameter with mass of up to 40 kg with 6 axes of adjustment. A unique method for the implementation of focus, roll and pitch was used allowing for extremely precise adjustment. The completed system includes transmission spheres with f-numbers from f/1.6 to f/0.82 incorporating reference surface diameters of up to 306 mm and surface accuracies of better than 63 nm PVr. The design challenges and resulting solutions are discussed. System performance results are presented.

Citation Download Citation

B. Truax "Vertical interferometer workstation for testing large spherical optics", Proc. SPIE 8884, Optifab 2013, 88840W (15 October 2013); https://doi.org/10.1117/12.2028726

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