1 October 1995 Technique for aligning optical and mechanical axes based on a rotating linear grating
Tomas D. Milster, Cynthia L. Vernold
Author Affiliations +
Abstract
We describe a technique for aligning the axis of an optical system with the axis of a rotating mechanical system. The optical system is focused onto a linear grating that rotates in conjunction with the mechanical system. Light reflected from the grating produces an interference pattern in the pupil of the optical system. Temporal modulation of the fringes in the interference pattern is observed as the mechanical system rotates if the optical and mechanical axes are misaligned. Experimentally we demonstrate alignment to better than 0.1 μm.
Tomas D. Milster and Cynthia L. Vernold "Technique for aligning optical and mechanical axes based on a rotating linear grating," Optical Engineering 34(10), (1 October 1995). https://doi.org/10.1117/12.210764
Published: 1 October 1995
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CITATIONS
Cited by 10 scholarly publications.
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KEYWORDS
Modulation

Fringe analysis

Phase shift keying

Diffraction gratings

Monochromatic aberrations

Objectives

Optical alignment

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