... : High surface quality and transimission4) AR coating of Optical glass lens: multipe layer, its transmission up to 95 ... and more 5) Application of Optical glass lens: Light System,Electronics6) Series of Optical glass lens:Including Fresnel lens,Plano ... , Ball lens, Spherical lens, Aspheric lens, Meniscus lens Optical SpecificationMaterialBK7,B270or specified by customerDesign index1.5183+/-0.0005 at ...