I-Chromasir's optical grating ithatha indawo yeWaters optical grating, enokuthi isetyenziswe kunye ne-UVD efana ne-Waters 2487, 2489, i-TUV endala, i-TUV eluhlaza okwesibhakabhaka, njl. ukuvelisa ezo mveliso. Ziveliswa njengotshintsho olufikelelekayo lwaManzi, ezinomgangatho ofanayo kunye nokusebenza okugqwesileyo.