二次配光透镜材质为水晶玻璃，经特殊工艺处理，具有更佳的透光性能和抗紫外线功能。
The secondary light distribution lens' material is made of crystal glass. After special fabrication processing, it has much better function on transmission of light and anti-ultraviolet rays.
采用光学级PM MA二次配光技术，可根据需求调整发光角度、聚光效果及颜色搭配。
It USES optical PMMA secondary light distribution technology. Viewing Angle, light-gathering effects and color matching all can be adjusted according to demands.
LED的二次光学元件设计对LED路灯的配光及光学输出效率至关重要。
The secondary optics design is a critical issue for the output efficiency and light distribution pattern of the LED street light.
LED的二次光学元件设计对LED路灯的配光及光学输出效率至关重要。
The secondary optics design is a critical issue for the output efficiency and light distribution pattern of the LED street light.
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