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Proceedings Paper

Electro-Optical Laser Unequal Path Interferometer (LUPI)
Author(s): Mark Egdall; Vincent Schirf; Dennis Ehn
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Paper Abstract

A concept for near real-time automatic processing of interferometric data from a Laser Unequal Path Interferometer (LUPI) using an EO camera and mini-computer is presented. A major advantage of this system is a straightforward replacement of the standard film camera by an EO camera (with no further modification required to the interferometer). Testing of the optical systems with obstructions and/or spiders and baffles within the aperture is done automatically. The system is designed for implementation in the fabrication/test cycle of ultra-high quality optical components and systems; where averaging is used to reduce random test errors (e.g., vibration and air turbulence). The system is configured as having portable E/O cameras and monitors hooked into ports at various lab facilities via cabling to the mini-computer at the Data Reduction Station. Itek's Optics Package Fringe Reduction (FRED) software is available at the Data Reduction Station for full analysis capability.

Paper Details

Date Published: 29 November 1979
PDF: 6 pages
Proc. SPIE 0193, Optical Systems in Engineering I, (29 November 1979); doi: 10.1117/12.957893
Show Author Affiliations
Mark Egdall, Itek Corporation Optical Systems Division (United States)
Vincent Schirf, Itek Corporation Optical Systems Division (United States)
Dennis Ehn, Itek Corporation Optical Systems Division (United States)

Published in SPIE Proceedings Vol. 0193:
Optical Systems in Engineering I
Paul R. Yoder Jr., Editor(s)

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