Polymers | Refractive index measurements in polymers according to ASTM D 542 and ISO 489
Determination of refractive indices in polymers and organic plastics is important in several optical applications such as foils, fibers and lenses by means of the Anton Paar Abbemat series.
Transparent plastics are becoming more and more attractive for optical applications, like optical fibers, adhesives, lenses, LCD displays, anti-reflective films, etc.
High and low refractive index polymers are used in several optical applications. Low refractive index polymers have a refractive index of roughly 1.3 - 1.4 and are applied to optical applications, e.g. anti-reflective coatings for optical lenses. The higher the refractive index, the higher the lens effect of the material. High refractive index polymers have refractive indices of 1.5 and higher. Transparent high refractive index polymers are used in optical applications that require strong focusing power, like for example optical lenses.
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