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16 December 1976 Machining Nonconventional-Shaped Optics
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Abstract
Nonconventional-shaped optics are being machined for use in laser optical systems. The fabrication processes incorporate special-quality diamond tools and specially constructed turning machines. The shapes produced include axicons (conical-shaped mirrors), waxicons (a compound axicon with a "W" cross section), torics, and multifacet mirrors. Whereas conventional-shaped optics are readily producible by the lapping process, these nonconventional-shaped optics are very impractical to lap. The axicons and waxicons produced were estimated to have surface straightness as good as 5 μin (125 nm), over 3 inches (76 mm) of length, and angular accuracy as good as 2 arc seconds. A toric mirror was estimated to deviate (peak to valley) from a best-fit radius by 4 μin (100 nm) over 2.25 inches (57 mm) of surface length.
© (1976) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. B. Arnold, T. Saito, R. E. Sladky, P. J. Steger, and N. D. Woodall "Machining Nonconventional-Shaped Optics", Proc. SPIE 0093, Advances in Precision Machining of Optics, (16 December 1976); https://doi.org/10.1117/12.955106
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