| Substrate Material: |
N-BK7 glass |
| Mirror/Lens Design: |
Half-ball configuration |
| Outer Diameter(Half-ball): |
80.0, -0.5/+0.0mm |
| Radius of Curvature (ROC): |
40.0,+/-0.1mm |
| Bottom Height/OD |
10.0,+/-0.2mm (outer diameter: 80.0,-0.5/+0.0mm) |
| Surface Quality: |
60-40 S/D |
| Surface Acuracy: |
<Lambda/4 @633nm over 25.4mm area of surface |
| Dome Surface Coating: |
Aluminum coating, SiC protected surface; Reflection: R>85% average over 400-2000nm |
| Base Plate: |
BK7 glass; Dia 90.0,-0.0/+0.5mm x Thk 6.0,+/-0.2mm Polished/clear surfaces; Base glass cemented with dome mirror body(upper surface comes with PAL coating as well) |

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