Abstract

The reflection characteristics of certain optical elements and sights have been investigated in the 0.3–20-μm wavelength region. It is shown that the reflectance increases in the UV region and depends on the design of the device. Therefore, a promising range for detecting optical devices is the UV region, operation in which makes it possible to achieve high contrast of the image of an object on the background of natural formations. The results of field experiments using laser illumination of optical devices are given.

© 2014 Optical Society of America

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