Fabrication of freeform optics

Todd Blalock; Kate Medicus; Jessica DeGroote Nelson

doi:10.1117/12.2188523

27 August 2015 Fabrication of freeform optics

Todd Blalock, Kate Medicus, Jessica DeGroote Nelson

Proceedings Volume 9575, Optical Manufacturing and Testing XI; 95750H (2015) https://doi.org/10.1117/12.2188523
Event: SPIE Optical Engineering + Applications, 2015, San Diego, California, United States

Abstract

Freeform surfaces on optical components have become an important design tool for optical designers. Non-rotationally symmetric optical surfaces have made solving complex optical problems easier. The manufacturing and testing of these surfaces has been the technical hurdle in freeform optic’s wide-spread use. Computer Numerically Controlled (CNC) optics manufacturing technology has made the fabrication of optical components more deterministic and streamlined for traditional optics and aspheres. Optimax has developed a robust freeform optical fabrication CNC process that includes generation, high speed VIBE polishing, sub-aperture figure correction, surface smoothing and testing of freeform surfaces. Metrology of freeform surface is currently achieved with coordinate measurement machines (CMM) for lower resolution and interferometry with computer generated holograms (CGH) for high resolution irregularity measurements.

Citation Download Citation

Todd Blalock, Kate Medicus, and Jessica DeGroote Nelson "Fabrication of freeform optics", Proc. SPIE 9575, Optical Manufacturing and Testing XI, 95750H (27 August 2015); https://doi.org/10.1117/12.2188523

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