JingYu optics Science & Technology Co., Ltd majors in optical fabrication, especially in cylindrical lenses, including: cylindrical and spherical lenses, prisms, mirrors, flat lenses, optical wedges ,color filters, coating, sapphire, crystal, magnifier, CaF2 lenses and MgF2 windows, and the like. The materials we used are types of visible, infrared and laser optical materials and crystal materials, and the like.