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Optical Engineering

Elimination Of Clover In The Machining Of Off-Centered Conic Mirrors
Author(s): R. C. Yoder
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Paper Abstract

Expressions are derived in closed form for the optical signatures resulting from test alignment and from several controllable machining parameters, to lowest order, in the manufacture of diamond-turned mirrors of the type comprising conic sections of revolution. Transformation of these effects to the local coordinate systems of off-axis sections of these optics yields converging series of Seidel wavefront aberrations. This information can be used to distinguish artifacts stemming from alignment of the optic from those arising from such parameters as tool offset and local tool path adjustments. It is also shown how, by allowing a departure of the optic axis from the machining axis, these effects can be used to control an aberration of choice (e.g., clover) that departs from that class having variation only transverse to the trace of the tool across the local aperture.

Paper Details

Date Published: 1 June 1985
PDF: 12 pages
Opt. Eng. 24(3) 243485 doi: 10.1117/12.7973512
Published in: Optical Engineering Volume 24, Issue 3
Show Author Affiliations
R. C. Yoder, Martin Marietta Energy Systems, Inc. (United States)

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