屋脊棱镜  Roofprism

　　材料/Material:H-K9L/BK7

　　外形公差/DiameterTolerance:±0.1mm

　　角度公差/AngularTolerance:±2″

　　面型/SurfaceAccuracy:N=1

　　局部面形/Localsurfaceshape：△N=0.1

　　光洁度/SurfaceQuality:20-10

　　平行度/Paralleldegree;≤30′

　　有效孔径/ClearAperture:>90%

　　倒边/Bevelling:<0.2×45°

　　镀膜/Coating:CustomDesign