A novel high magnification zoom laser beam expander is proposed originally. The zoom part and fixed part of the beam expander both adopt spherical lens and the compensation part comprising a spherical surface and an a...A novel high magnification zoom laser beam expander is proposed originally. The zoom part and fixed part of the beam expander both adopt spherical lens and the compensation part comprising a spherical surface and an aspherical surface. The structure parameters were given by using geometry optics.The zoom characteristic and image quality were also analyzed.The results show that the magnification of the beam expander can be adjusted continuously from 3 to 20. Compared with other congener spherical zoom system,the beam expander has the advantages of high magnification,compact structure,high beam quality and high transmission efficiency.The novel expander can be used in many fields effectively.展开更多
On the basis of Preston hypothesis,the motion relationship between tool and workpiece upon the tools motion in planar model is analyzed.The effect on computer controlled optical surfacing (CCOS) caused by controllable...On the basis of Preston hypothesis,the motion relationship between tool and workpiece upon the tools motion in planar model is analyzed.The effect on computer controlled optical surfacing (CCOS) caused by controllable variable is simulated except for the dwelling time,thus,some reference on theory is provided to optimize the former numerical control (NC) model,and fast manufacturing of large departure aspherics is realized.展开更多
TG580.692 99063926高精度光学表面的OFHC铜反射镜抛光技术=Pol-ishing technology for high precision optical sur-face of OFHC copper mirror[刊,中]/周晨波,杨力,魏惠林,陈强,伍凡(中科院光电技术研究所.四川,成都(610209))∥光电...TG580.692 99063926高精度光学表面的OFHC铜反射镜抛光技术=Pol-ishing technology for high precision optical sur-face of OFHC copper mirror[刊,中]/周晨波,杨力,魏惠林,陈强,伍凡(中科院光电技术研究所.四川,成都(610209))∥光电工程.—1998,25(1).—45—49。展开更多
文摘A novel high magnification zoom laser beam expander is proposed originally. The zoom part and fixed part of the beam expander both adopt spherical lens and the compensation part comprising a spherical surface and an aspherical surface. The structure parameters were given by using geometry optics.The zoom characteristic and image quality were also analyzed.The results show that the magnification of the beam expander can be adjusted continuously from 3 to 20. Compared with other congener spherical zoom system,the beam expander has the advantages of high magnification,compact structure,high beam quality and high transmission efficiency.The novel expander can be used in many fields effectively.
文摘On the basis of Preston hypothesis,the motion relationship between tool and workpiece upon the tools motion in planar model is analyzed.The effect on computer controlled optical surfacing (CCOS) caused by controllable variable is simulated except for the dwelling time,thus,some reference on theory is provided to optimize the former numerical control (NC) model,and fast manufacturing of large departure aspherics is realized.
文摘TG580.692 99063926高精度光学表面的OFHC铜反射镜抛光技术=Pol-ishing technology for high precision optical sur-face of OFHC copper mirror[刊,中]/周晨波,杨力,魏惠林,陈强,伍凡(中科院光电技术研究所.四川,成都(610209))∥光电工程.—1998,25(1).—45—49。
