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Proceedings Paper

Measure of surface and bulk defects in any transmitting or reflecting optical component
Author(s): Fabrizio Liberati
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Paper Abstract

An application of the Schlieren test method to evaluate scratches, digs, bubbles, inclusions, or any other kind of optical defects using the same simple equipment is reported. The system can be used in two different configurations, allowing the testing of mirror surfaces (reflection mode) and lenses (transparency mode) as well. The magnification is invariant and gives the opportunity to automatically count or compare defects with standards.

Paper Details

Date Published: 1 January 1993
PDF: 5 pages
Proc. SPIE 1781, Specification and Measurement of Optical Systems, (1 January 1993); doi: 10.1117/12.140966
Show Author Affiliations
Fabrizio Liberati, Agusta O.M.I. S.r.l. (Italy)

Published in SPIE Proceedings Vol. 1781:
Specification and Measurement of Optical Systems
Lionel R. Baker, Editor(s)

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