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Proceedings Paper

Fabrication and metrology of high-precision freeform surfaces
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Paper Abstract

Freeform applications are growing and include helmet-mounted displays, conformal optics (e.g. windows integrated into airplane wings), and those requiring the extreme precision of EUV. These non-rotationally symmetric surfaces pose challenges to optical fabrication, mostly in the areas of polishing and metrology. The varying curvature of freeform surfaces drives the need for smaller, more “conformal”, tools for polishing and reference beams for interferometry. In this paper, we present fabrication results of a high-precision freeform surface. We will discuss the total manufacturing process, including generation, pre-polishing, MRF®, and metrology, highlighting the capabilities available in today’s optical fabrication companies.

Paper Details

Date Published: 15 October 2013
PDF: 10 pages
Proc. SPIE 8884, Optifab 2013, 888411 (15 October 2013); doi: 10.1117/12.2030144
Show Author Affiliations
Chris Supranowitz, QED Technologies, Inc. (United States)
Paul Dumas, QED Technologies, Inc. (United States)
Tobias Nitzsche, QED Technologies, Inc. (United States)
Jessica DeGroote Nelson, Optimax Systems, Inc. (United States)
Brandon B. Light, Optimax Systems, Inc. (United States)
Kate Medicus, Optimax Systems, Inc. (United States)
Nathan Smith, Optimax Systems, Inc. (United States)
Robin B. Townell, QED Technologies, Inc. (United States)

Published in SPIE Proceedings Vol. 8884:
Optifab 2013
Julie L. Bentley; Matthias Pfaff, Editor(s)

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