Abstract

Exposure of the eye to laser radiation with wavelengths between 400 and 1400 nm could cause serious damage to the retina. Multilayer dielectric coatings are frequently used to filter out energy at specific wavelengths. This paper describes theoretical and experimental data to evaluate whether pinholes in these coatings could possibly present an optical hazard when laser energy is transmitted through the coatings. Insight into the potential hazard would be important to personnel equipped with eye protective goggles or personnel viewing lasers through protected magnifying optics, especially when pinholes could arise because of exposure to harsh environments.

© 1985 Optical Society of America

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