The world's top patent technology of 5S photocatalyst film with independent R & D the world's unique optical grade nano modified silica gel as substrate, to precision optical control technology and its surface modification of super precision machining technology, and supplemented by nanoscale optical coating, accurate order control based on optical transmission angle, distance, the luminous flux per unit area of point light source to surface light source processing technology, in China, South Korea, Japan, including Germany, the United States and other countries and regions with the invention patent, by the world as "by far the best technology of light guide material"

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