Measure of surface and bulk defects in any transmitting or reflecting optical component

Fabrizio Liberati

doi:10.1117/12.140966

1 January 1993 Measure of surface and bulk defects in any transmitting or reflecting optical component

Fabrizio Liberati

Proceedings Volume 1781, Specification and Measurement of Optical Systems; (1993) https://doi.org/10.1117/12.140966
Event: Optical Systems Design '92, 1992, Berlin, Germany

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.

Citation Download Citation

Fabrizio Liberati "Measure of surface and bulk defects in any transmitting or reflecting optical component", Proc. SPIE 1781, Specification and Measurement of Optical Systems, (1 January 1993); https://doi.org/10.1117/12.140966

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