Page 110 - Tokai Catalog 2024/2025
P. 110

Photochromic Mineral Type























































                   Photochromic Gray          Transmittance (%)    Photochromic Gray

                                                    Fading                                          Fading

                                                       Darkning                                        Darkning
                     Fading       Darkning                            Fading      Darkning
                                                    Wave Length (nm)

                    Photochromic Gray                              Photochromic Gray
                                                     Fading
                                                                                                     Fading
                                                       Darkning                                        Darkning
                      Fading       Darkning                           Fading      Darkning


                    Photochromic Gray                              Photochromic Gray
                                                                                                    Fading
                                                     Fading
                      Fading      Darkning               Darkning    Fading       Darkning             Darkning



                                                             Depending on the environment, tone or the changing rate of absorption can be different.
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