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23 February 1987 The effect of the size of structural bulk inhomogeneities on the specular transmittance of polymer films
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Abstract
This paper will be confined to the effect of optical inhomogeneities in polymer films on the scattering or specular transmittance of light. Potential causes for the presence of scattering entities in the bulk phase of polymers will be discussed. It will be shown that practical transmittance measurements are greatly influenced by the angular width of the instrument receptor aperture. The choice of larger receptor apertures will tend to include some of the scattering at small angles due to large inhomogeneities in the measurement of specular transmittance. As a consequence, the transmittance measured is not necessarily increased by reducing the size of the inhomogeneities in the polymer films, but there is a critical size when the specular transmittance is a minimum.
© (1987) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hermann H. Neidlinger "The effect of the size of structural bulk inhomogeneities on the specular transmittance of polymer films", Proc. SPIE 0692, Materials and Optics for Solar Energy Conversion and Advanced Lightning Technology, (23 February 1987); https://doi.org/10.1117/12.936689
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