Deterministic processes for manufacturing conformal (freeform) optical surfaces

Jeffrey L. Ruckman; Edward M Fess; Harvey M. Pollicove

doi:10.1117/12.439166

7 September 2001 Deterministic processes for manufacturing conformal (freeform) optical surfaces

Jeffrey L. Ruckman, Edward M Fess, Harvey M. Pollicove

Proceedings Volume 4375, Window and Dome Technologies and Materials VII; (2001) https://doi.org/10.1117/12.439166
Event: Aerospace/Defense Sensing, Simulation, and Controls, 2001, Orlando, FL, United States

Abstract

This paper describes the computer-controlled machines and deterministic processes developed by the Center for Optics Manufacturing (COM) at the University of Rochester to produce conformal windows and domes that have non-traditional optical surface geometry and unusual shapes. COM's DMG (deterministic microgrinding) technology produces aspheric and conformal (freeform) surfaces in minutes, versus the weeks that are required to produce the surfaces conventionally. The demonstrated techniques and equipment provide a predictable and repeatable optical production process for just about any IR, visible, or UV material. The DMG process, in concert with newly developed CNC machining equipment, typically yields 1.0 wave peak-to-valley form accuracy, 150 Angstroms rms surface finish, and subsurface damage levels low enough that some of the infrared materials do not require additional polishing.

Citation Download Citation

Jeffrey L. Ruckman, Edward M Fess, and Harvey M. Pollicove "Deterministic processes for manufacturing conformal (freeform) optical surfaces", Proc. SPIE 4375, Window and Dome Technologies and Materials VII, (7 September 2001); https://doi.org/10.1117/12.439166

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