光源采用光纤耦合技术，扩束镜为专业光学设计，光斑更均匀；
Optical fiber coupling technique is used in light sources and special optical system design is used in extender lens to make sure of more equal facula.
实际上，做一个货真价实的LED灯管是相当复杂的，需要有精通物理、化学、光学、设计和制造的专业人才。
But the simple fact is that coming up with a truly worthy LED bulb is enormously complex, requiring expertise in physics, chemistry, optics, design, and manufacturing.
本文论述了在照明光学设计中需要涉及到的专业术语，并且研究了其中的内在联系。
This paper discusses the professional terminology which involved in the optical design in the lighting, and the study of the intrinsic link of them.
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