1 April 1990 Recent advances in retroreflective security materials
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Abstract
As the title of this paper suggests, there are new optical systems that may be used for security applications. Several will be discussed here, along with a new selection procedure for consideration by those who search for utilization of the most effective "security" system to meet their requirements.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Edwin A. Grant, "Recent advances in retroreflective security materials", Proc. SPIE 1210, Optical Security and Anticounterfeiting Systems, (1 April 1990); doi: 10.1117/12.17918; https://doi.org/10.1117/12.17918
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