Machining Nonconventional-Shaped Optics

J. B. Arnold; T. Saito; R. E. Sladky; P. J. Steger; N. D. Woodall

doi:10.1117/12.955106

16 December 1976 Machining Nonconventional-Shaped Optics

J. B. Arnold, T. Saito, R. E. Sladky, P. J. Steger, N. D. Woodall

Proceedings Volume 0093, Advances in Precision Machining of Optics; (1976) https://doi.org/10.1117/12.955106
Event: 20th Annual Technical Symposium, 1976, San Diego, United States

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.

Citation Download Citation

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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