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| Specifications |
| Material: |
fused silica |
| Diameter Tolerance: |
+0.0/-0.1 mm |
| Thickness Tolerance: |
± 0.1 mm |
| Parallelism: |
± 0.5 arc minute |
| Clear Aperture: |
> 90% central |
| Chamfer: |
< 0.25 mm at 45o |
| Antireflection Coating: |
single layer, multi-layer, customer specified |
| Part No. | Diameter | Thickness | Surface Quality | Surface Flatness |
| FSW0055 | 5.0 mm | 1.0 mm | 10-5 | l/10 |
| FSW0059 | 5.0 mm | 2.0 mm | 10-5 | l/10 |
| FSW0061 | 5.0 mm | 2.5 mm | 10-5 | l/10 |
| FSW0075 | 6.0 mm | 1.0 mm | 10-5 | l/10 |
| FSW0079 | 6.0 mm | 1.5 mm | 10-5 | l/10 |
| FSW0082 | 6.0 mm | 2.0 mm | 10-5 | l/10 |
| FSW0086 | 6.0 mm | 3.0 mm | 10-5 | l/10 |
| FSW0097 | 6.35 mm | 2.0 mm | 10-5 | l/10 |
| FSW0102 | 6.35 mm | 2.5 mm | 10-5 | l/10 |
| FSW0106 | 6.35 mm | 3.0 mm | 10-5 | l/10 |
| FSW0146 | 7.5 mm | 1.5 mm | 10-5 | l/10 |
| FSW0150 | 7.5 mm | 2.0 mm | 10-5 | l/10 |
| FSW0159 | 8.0 mm | 2.0 mm | 10-5 | l/10 |
| FSW0163 | 8.0 mm | 3.0 mm | 10-5 | l/10 |
| FSW0190 | 10.0 mm | 2.0 mm | 10-5 | l/10 |
| FSW0193 | 10.0 mm | 3.0 mm | 10-5 | l/10 |
| FSW0198 | 10.0 mm | 5.0 mm | 10-5 | l/10 |
| FSW0225 | 12.7 mm | 2.0 mm | 10-5 | l/10 |
| FSW0228 | 12.7 mm | 2.5 mm | 10-5 | l/10 |
| FSW0232 | 12.7 mm | 3.0 mm | 10-5 | l/10 |
| FSW0235 | 12.7 mm | 4.0 mm | 10-5 | l/10 |
| FSW0239 | 12.7 mm | 5.0 mm | 10-5 | l/10 |
| FSW0270 | 15.0 mm | 2.0 mm | 10-5 | l/10 |
| FSW0275 | 15.0 mm | 3.5 mm | 10-5 | l/10 |
| FSW0279 | 15.0 mm | 5.0 mm | 10-5 | l/10 |
| FSW0301 | 18.0 mm | 3.0 mm | 10-5 | l/10 |
| FSW0306 | 18.0 mm | 5.0 mm | 10-5 | l/10 |
| FSW0359 | 20.0 mm | 3.0 mm | 10-5 | l/10 |
| FSW0363 | 20.0 mm | 4.0 mm | 10-5 | l/10 |
| FSW0366 | 20.0 mm | 5.0 mm | 10-5 | l/10 |
| FSW0417 | 25.4 mm | 2.0 mm | 10-5 | l/10 |
| FSW0420 | 25.4 mm | 3.0 mm | 10-5 | l/10 |
| FSW0422 | 25.4 mm | 3.5 mm | 10-5 | l/10 |
| FSW0426 | 25.4 mm | 4.0 mm | 10-5 | l/10 |
| FSW0430 | 25.4 mm | 6.0 mm | 10-5 | l/10 |
| FSW0490 | 30.0 mm | 2.0 mm | 20-10 | l/8 |
| FSW0493 | 30.0 mm | 3.0 mm | 20-10 | l/8 |
| FSW0498 | 30.0 mm | 5.0 mm | 20-10 | l/8 |
| FSW0607 | 38.1 mm | 2.0 mm | 20-10 | l/4 |
| FSW0610 | 38.1 mm | 3.0 mm | 20-10 | l/4 |
| FSW0615 | 38.1 mm | 4.0 mm | 20-10 | l/4 |
| FSW0620 | 38.1 mm | 5.0 mm | 20-10 | l/4 |
| FSW0821 | 50.8 mm | 5.0 mm | 20-10 | l/4 |
| FSW0829 | 50.8 mm | 6.0 mm | 20-10 | l/4 |
| FSW0836 | 50.8 mm | 8.0 mm | 20-10 | l/4 |
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