
Material: H-K9L
Surface Flatness: λ/4@ 633 nm
Surface Quality: 60/40
Coating: protect Aluminum on five surfaces, with crosshatch lines in the center

Material: H-K9L
Surface Flatness: λ/4@ 633 nm
Surface Quality: 60/40
Coating: protect Aluminum on five surfaces, with crosshatch lines in the center
| model | size (mm) | Angle accuracy | Line width (mm) | Line Deviation (mm) | Average Reflectance@400-1100nm |
| JKP18-010 | 10 | <5″ | 0.04 | <0.1mm | > 85% |
| JKP18-015 | 15 | <5″ | 0.04 | <0.1mm | > 85% |
| JKP18-020 | 20 | <5″ | 0.04 | <0.1mm | > 85% |