Shearographic Detection Of Flaws In Unity Vision Optical Components

Douglas W. Templeton; Robert V. Goedert

doi:10.1117/12.947664

14 December 1988 Shearographic Detection Of Flaws In Unity Vision Optical Components

Douglas W. Templeton, Robert V. Goedert

Proceedings Volume 0955, Industrial Laser Interferometry II; (1988) https://doi.org/10.1117/12.947664
Event: SPIE International Symposium on Optical Engineering and Industrial Sensing for Advance Manufacturing Technologies, 1988, Dearborn, MI, United States

Abstract

Unity vision equipment, such as periscopes and vision blocks, is used in combat vehicles to furnish the vehicle crew with a wide-angle, closed-hatch surveillance capability. The addition of filters to eliminate laser hazards from affecting crewmembers' eyes makes the testing of such filters essential in order to assure their physical and optical integrity. The hazard filters are glass with a thin-film coating and, depending on the application, cemented to polycarbonate or acrylic. This paper presents some preliminary results in the applicability of shearography for flaw detection in thin-film coatings and bonded optical components used in combat vehicle unity vision devices.

Citation Download Citation

Douglas W. Templeton and Robert V. Goedert "Shearographic Detection Of Flaws In Unity Vision Optical Components", Proc. SPIE 0955, Industrial Laser Interferometry II, (14 December 1988); https://doi.org/10.1117/12.947664

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