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
If the objective lens is closer to the compact disk than the focal length of the object lens then the cylindricallens creates an elliptical image on the photodetector array.
如果物镜与光盘之间的距离短于物镜的焦距，柱面透镜就会使在光电探测器阵列上的成像变成椭圆影像。
3
If the objective lens is closer to the compact disk than the focal length of the object lens, then the cylindricallens creates an elliptical image on the photodetector array.