| Diameter Available |
3mm--50mm |
| Diameter Tolerance |
+0/-0.5mm |
| Thickness Tolerance |
+/-0.05mm |
| Focal Length Tolerance |
±1% |
| Surface Accuracy |
/4 irregularity @632.8nm |
| Surface Quality |
40-20 S/D |
| Centration |
＜3 arc min |
| Clear Aperture |
＞90% |
| Bevel |
Protective bevel |
| Material |
BK7,Fused silica,Quartz,SF11, and other optical glass |
| Coating |
AR coating |
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