Toray's bare fiber is a step-type, the fiber core is high-purity polymethyl methacrylate, and the cladding is a fluorinated polymer. Raytela plastic optical fiber is a low-attenuation, high-reliability product with high transmission capacity, good noise impedance, high flexibility, etc. It is widely used in short-distance communications, industry, decoration and other fields. Special optical fibers are also used in medical equipment to strictly control dust/foreign matter. Toray uses special machines to detect special medical optical fibers throughout the production line to ensure that the output products are free of dust/foreign matter. And pass the "Biocompatibility test".