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Proceedings Paper

Optical alignment using a CGH and an autostigmatic microscope
Author(s): Robert E. Parks
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Paper Abstract

We show how custom computer generated holograms (CGH) are used along with an autostigmatic microscope (ASM) to align both optical and mechanical components relative to the CGH. The patterns in the CGHs define points and lines in space when interrogated with the focus of the ASM. Once the ASM is aligned to the CGH, an optical or mechanical component such as a lens, a well-polished ball or a cylinder can be aligned to the ASM in 3 or 4 degrees of freedom and thus to the CGH. In this case we show how a CGH is used to make a fixture for cementing a doublet lens without the need for a rotary table or a precision vertical stage.

Paper Details

Date Published: 22 August 2017
PDF: 12 pages
Proc. SPIE 10377, Optical System Alignment, Tolerancing, and Verification XI, 103770B (22 August 2017); doi: 10.1117/12.2273033
Show Author Affiliations
Robert E. Parks, Optical Perspectives Group, LLC (United States)

Published in SPIE Proceedings Vol. 10377:
Optical System Alignment, Tolerancing, and Verification XI
José Sasián; Richard N. Youngworth, Editor(s)

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