Amashanyarazi meza nayo yitwa nka optique yamurika cyangwa ibintu byera bya fluorescent. Ibi nibintu bivanga imiti ikurura urumuri mukarere ka ultraviolet ya electromagnetic; ibyo byongeye gusohora urumuri mukarere k'ubururu hifashishijwe fluorescence
Optical brightener OB ifite ubushyuhe bwiza cyane; imiti ihamye; kandi ufite kandi guhuza neza mubisigarira bitandukanye.
Amashanyarazi meza ya OB-1 nuburyo bwiza bwa optique ya fibre ya polyester, kandi ikoreshwa cyane muri ABS, PS, HIPS, PC, PP, PE, EVA, PVC ikomeye nizindi plastiki. Ifite ibiranga ingaruka nziza zo kwera, ituze ryiza ryumuriro nibindi。