污水處理設(shè)備 污泥處理設(shè)備 水處理過濾器 軟化水設(shè)備/除鹽設(shè)備 純凈水設(shè)備 消毒設(shè)備|加藥設(shè)備 供水/儲水/集水/排水/輔助 水處理膜 過濾器濾芯 水處理濾料 水處理劑 水處理填料 其它水處理設(shè)備
北京錦坤科技有限公司
北京錦坤科技有限公司
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常用作聚焦鏡的紅外平凸鏡，材料包括BaF2,CaF2，Si，Ge，Al2O3，ZnSe以及其他各種材料。此材料為BaF2.
常用作聚焦鏡的紅外平凸鏡，材料包括BaF2,CaF2，Si，Ge，Al2O3，ZnSe以及其他各種材料。
| Dia tolerance (inch) | +0, -0.005 |
| Dia tolerance (mm) | +0, -0.13 |
| Center Thickness tolerance | ±0.008” (±0.2 mm) |
| Design Wavelength | 5.0 microns |
| Focal Length Tolerance | ±2% |
| Surface Quality | 60/40 |
| Clear Aperture | 90% Central Dia |
| Wedge Angle | < 3 arc min |
| Surface Irregularity | 1 wave at 633 nm |
| Dia tolerance (inch) | +0, -0.005 |
| Dia tolerance (mm) | +0, -0.13 |
| Center Thickness tolerance | ±0.008” (±0.2 mm) |
| Design Wavelength | 5.0 microns |
| Focal Length Tolerance | ±2% |
| Surface Quality | 60/40 |
| Clear Aperture | 90% Central Dia |
| Wedge Angle | < 3 arc min |
| Surface Irregularity | 1 wave at 633 nm |
| Dia tolerance (inch) | +0, -0.005 |
| Dia tolerance (mm) | +0, -0.13 |
| Center Thickness tolerance | ±0.008” (±0.2 mm) |
| Design Wavelength | 5.0 microns |
| Focal Length Tolerance | ±2% |
| Surface Quality | 60/40 |
| Clear Aperture | 90% Central Dia |
| Wedge Angle | < 3 arc min |
| Surface Irregularity | 1 wave at 633 nm |
| Dia tolerance (inch) | +0, -0.005 |
| Dia tolerance (mm) | +0, -0.13 |
| Center Thickness tolerance | ±0.008” (±0.2 mm) |
| Design Wavelength | 5.0 microns |
| Focal Length Tolerance | ±2% |
| Surface Quality | 60/40 |
| Clear Aperture | 90% Central Dia |
| Wedge Angle | < 3 arc min |
| Surface Irregularity | 1 wave at 633 nm |
| Dia tolerance (inch) | +0, -0.005 |
| Dia tolerance (mm) | +0, -0.13 |
| Center Thickness tolerance | ±0.008” (±0.2 mm) |
| Design Wavelength | 5.0 microns |
| Focal Length Tolerance | ±2% |
| Surface Quality | 60/40 |
| Clear Aperture | 90% Central Dia |
| Wedge Angle | < 3 arc min |
| Surface Irregularity | 1 wave at 633 nm |
| Dia tolerance (inch) | +0, -0.005 |
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