Material:BK7/ H-9LSurface Quality:60/40Dimension Tolerance:0.0/-0.1mmAngle Tolerance:3 ArcminFlatness:1/4 LambdaProduct name:Optical Glass triangular prisms triangular prism for reflectingCoating:Customer's RequirementType:Optical Glass CubesClear aperture:95%Application:Optical AreaDescription:Optical GradeUse:Optical InstrumentsColor:Clear TransparentSize:Customer-madeName:Optical Glass Right Angle Prism (BK7/K9 Show More