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Proceedings Paper

Analysis and performance limits of diamond-turned diffractive lenses for the 3-5 and 8-12 micrometer regions
Author(s): Max J. Riedl; James T. McCann
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Paper Abstract

Diffractive optical imaging elements have been proposed in numerous papers1-17 over the past decade. Few have been produced in quantities. The primary method of fabricating such diffractive elements has been reactive ion etching of a multi-level surface relief grating on one side of a lens. This approximation is known as Binary Optics1.

Recent experiments have shown that single point diamond turning can be very effective in generating continuous diffraction phase profiles. Combined with the long established method of aspherizing, this machining process is especially suitable for applications in the infrared spectrum. It provides a means of reducing the number of lens elements otherwise required for an objective to correct existing aberrations.

Paper Details

Date Published: 1 October 1991
PDF: 11 pages
Proc. SPIE 10260, Infrared Optical Design and Fabrication: A Critical Review, 1026008 (1 October 1991); doi: 10.1117/12.48448
Show Author Affiliations
Max J. Riedl, OFC Corp. (Germany)
James T. McCann, OFC Corp. (United States)


Published in SPIE Proceedings Vol. 10260:
Infrared Optical Design and Fabrication: A Critical Review
Rudolf Hartmann; Warren J. Smith, Editor(s)

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