建立了一种大功率LED的封装结构，二次光学设计采用了微透镜阵列技术，运用光线追踪法研究了这种封装结构的光学性能。
A packaging structure of high-power LED was presented, microlens array was employed in the secondary optical design, optical properties of the package was studied using Trace pro.
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.
为在平面上实现所需的照明，满足照明系统的要求，需要对光学系统进行二次设计。
In order to achieve the required illumination on a plane and meet the requirements of a lighting system, it is necessary to do the secondary design for optics system.
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