Mikanda yagalasi imapangidwa ndi kuwombera mchenga wagalasi. Malinga ndi kukula kwake, mikanda yagalasi imatha kugawidwa m'mikanda yagalasi (mikanda yagalasi ndi mtundu wa mikanda yagalasi ndipo imatanthawuza magawo olimba okhala ndi tinthu tating'ono osakwana 1 mm) ndi mikanda yagalasi. Malinga ndi ntchito, imatha kugawidwa m'mikanda yagalasi yowunikira, mikanda yagalasi ya sandblasting, mikanda yagalasi yopera, ndi mikanda yagalasi yodzaza. Pakati pawo, mikanda yowunikira imatha kugawidwa kukhala mikanda yagalasi yoteteza chitetezo ndi mikanda yagalasi yowonekera; Malinga ndi index refractive, akhoza kugawidwa mu general refractive index ndi mkulu refractive index mikanda galasi. Mlozera wa refractive uli pakati pa 1.5-1.64, ndipo index ya refractive yapamwamba nthawi zambiri imakhala 1.8-2.2. Pongoganiza kuti choyenera kwambiri kuwonetsera ndi mikanda yagalasi yokhala ndi index yowonetsera ya 1.93, index refractive iyi ikhoza kubwezeredwa mokhutiritsa kubwereranso ku kuwala kofananira, kotero kukweza kwa refractive index sikuwonetsedwe bwino.
