Refractive Index of CR39, CR-39

CR 39 lens polymer

For a typical sample of CR39 the refractive index and extinction coefficient at 632.8 nm are 1.498 and 0.000. Below are files of complete refractive index and extinction coefficients. If the file is not available for download, you can request our proprietary file by clicking "Request".

  • Proprietary encrypted file for use with Filmetrics systems
Wavelength (nm)

Refractive Index Reference - Filmetrics Composite

No guarantee of accuracy - use at your own risk.