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In 1950, Chinese-American scientist Dr. Dong Qifang created directional glass beads, and subsequently formulated a sequence of reflective material, reflective fabric. In 1968, the united states ROWLAND brothers invented and up against the micro-prism reflector engineering.The tape is 3M merchandise is the very first business in the United states with success produced topresent only the united states, Japan, China, South Korea, handful of countries can generate, reflective movie may be long-term use in produced nations, and its superb optical attributes and superb social financial worth has been vastly acknowledged and accepted. Again, this also brought on visitors basic safety of the field of optical business and also the full consideration of numerous researchers. In Seventies, the Chinese Academy of optical measurement at Yang Yonggang instructor performance will likely be directed reflective movie structure principle, optical traits, performance testing along with technical literature introduced to China, followed by numerous research institutes, universities are put about the reflective film series research and growth. To illustrate, the Ministry of Communications Highway Analysis Institute, Chinese Academy of Sciences and also other investigation models are optical from the specialists and special cash set up study and advancement team, carried out a study project. These early experts and investigation workers inside the Luminous Materials devoted a great deal of work, achieved some original results, generally labored out reflective material.
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