ISERLOHN, Germany, Jan. 5, 2016 — Präzisions Glas & Optik GmbH offers a free online calculation tool for Schott optical color glass filters. The application simulates transmission curves for all available Schott color glass filter materials. After selecting the filter type and entering the desired filter thickness, users can see the calculation, spectral transmission and internal transmission curve of the selected filter material. Users can also select the displayed wavelength range and zoom into the range of interest to generate individual transmission curves. The online calculator helps to quickly find suitable filters for applications in research, development and industry.