Optical fiber coupling technique is used in light sources and special optical system design is used in extenderlens to make sure of more equal facula.
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；
2
Two kind of simple methods, which are termed of extenderlens amplification imaging method and convex lens amplification imaging method, are proposed based on amplification principle in this paper.