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1·The prime products are spherical lens, Windows, prisms, achromatic lens, cylindrical mirror, laser optical components, infrared optical components, various crystals and some other relative items.

主要产品有球面镜、窗口、棱镜、胶合镜、柱面镜、激光光学元件、红外光学元件、各种晶体。

2·The achromatic principle and its design method of two-grating lens system are presented.

介绍双光栅透镜系统的消色差原理和设计方法。