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Specifications：
| Material | BK7 or UV fused silica |
| Diameter Tolerance | +0/-0.15mm |
| Thickness Tolerance | ±0.25mm |
| Clear Aperture | ＞Central 85% of diameter |
| Parallelism | ＜5″ |
| Surface Quality | 20/10 |
| Transmitted Wavefront |
λ/10 @632.8nm |
| Chamfers |
12.7&25.4mm：0.25-0.75mm face width×45°±15° 50.8mm：0.38-1.14mm face width×45°±15° |
• Most sizes with λ /20 transmitted wavefront and 10-5 surface quality are available；
• All kinds of coatings are available；
• Custom designs for other sizes and coatings are also available upon request.
Order Information：
| WIN | ---- | 127 | ---- | 060 | ---- | BK7 |
| ↓ | ↓ | ↓ | ↓ | |||
| Product Code | Dia=12.7mm | Thickness=6.0mm | Material |
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