Acrylic Sheet Refractive Index

Over the past few years i have been collecting ior index of refraction values i can find for use in 3d rendering applications.

Acrylic sheet refractive index.

Refractive index database the table below contains links to refractive index data for common materials. Poly methyl methacrylate pmma also known as acrylic acrylic glass or plexiglass as well as by the trade names crylux plexiglas acrylite astariglas lucite perclax and perspex among several others see below is a transparent thermoplastic often used in sheet form as a lightweight or shatter resistant alternative to glass the same material can be used as a casting resin or in inks. Pmma grades allow 92 of light to pass through it which is more than glass or other plastics. For edge lighting applications.

If the file is not available for download you can request our proprietary file by clicking request. With using refractometer kpr 300 we can know the relation between refractive index and wavelength δn δλ by multi wavelength measurement. These plastic materials can easily be thermoformed without any loss in optical clarity. Many 3d applications these days allow you to input actual ior values in order to achieve a more accurate representation of surfaces during rendering of your 3d models.

Kpr 300 can also measure resin samples that cannot be processed and be measured. Index of refraction values ior for use with 3d modeling rendering and animation applications. Many materials have a well characterized refractive index but these indexes depend strongly upon the frequency of light. When refractive index surface reflectance and absorbance of the sheet are known the designer can create displays that appear to be self illuminated.

To make the most effective and efficient use of edge lighted acrylic shapes fabricators must consider the following basic design factors. There are also weaker dependencies on temperature pressure stress etc as well on precise material compositions presence of dopants etc. Poly methyl methacrylate is produced by free radical polymerization of methyl methacrylate in mass when it is in sheet form or suspension polymerization. It s what we deliver.

This page shows the results of measuring the refractive index with three wavelengths d line c line f line of acrylic resin pmma molded aspheric lens. For a typical sample of acrylic the refractive index and extinction coefficient at 632 8 nm are 1 48899 and 0. Below are files of complete refractive index and extinction coefficients. Each material in the database has refractive index listed as a function of wavelength over a range typically required for thin film thickness measurement.

Pmma acrylic polymer has a refractive index of 1 49 and a density ranges between 1 17 1 20 g cm 3 which is half less than that of glass.