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交通信号灯面罩
由于大功率LED的普及,使用单颗或几颗LED做光源,菲涅尔透镜和微阵列透镜配合单颗LED光源,取代了多颗LED做光源构成交通信号灯已成为行业发展的趋势。目前已在世界多个国家投入使用。菲涅尔透镜具有:超薄的结构、超大的尺寸、超轻的重量、任意形状的切割,优良的透光率、较低的价格轻便易携带等优点,
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