acetate                 Spectral data for filters of different
                        'materials'
band_pass               Spectral data for filters of different 'types'
bpi_visqueen            Filter spectra data for commercial grenhouse
                        films from BPI Visqueen
clear_filters           Spectral data for filters of different 'colors'
courtaulds              Filter spectra data for cellulose di-acetate
                        film
etola                   PE films supplied by Etola Oy
evonik                  Total transmittance for PMMA sheets (Plexiglas)
                        by Evonik
filters.mspct           Spectral irradiance for diverse optical filters
foiltek                 Spectral Transmittance for Plastic Sheets
                        Supplied by Foiltek
glass_windows           Spectral transmittance for glass windows
lee                     Filter spectra data for Lee theatrical filter
mcdermit                Filter spectra data for McDermit Autostat CT5
                        "polyester" filter
midopt                  Total transmittance for MidOpt filters
petri_dishes            Total transmittance for Petri dishes
photobiologyFilters-package
                        photobiologyFilters: Spectral Transmittance
                        Data for Filters
rosco                   Filter spectra data for Rosco thetrical filters
                        or 'gels'
schott                  Internal transmittance for Schott filters
xl_horticulture         Filter spectra data for commercial grenhouse
                        films from XL Horticulture
