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.
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.
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。
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