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IR 中性密度滤光片
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我们生产的红外中性密度滤光片在2μm 到14μm的波段的透射曲线非常平坦，适合于用在热成像和医学成像。可选5种光密度，2种尺寸。加上一层金属合金膜后，通过吸收和反射结合可达到标称的透射值。这5种光密度值的滤光片是我们提供的中性密度滤光片成套设备的一部分，可与滤光片转轮配套使用。
在2μm到14μm波段光谱透射线很平坦
采用精密锗材料
产品
| 标题 | 产品编码 | Dia. (mm) | 光密度 OD（平均） | 基底 | 涂层 | 表面质量 | 厚度 (mm) | 透射率 (%) | 传输容差 (%) | 类型 | 阻断波长范围 (nm) | 平行度（弧分） |
| 0.3 OD, 12.5mm Dia., IR Neutral Density Filter | 12-003 | 12.50 ±0.2 | 0.3 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 50.0 | ±4.0 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 0.5 OD, 12.5mm Dia., IR Neutral Density Filter | 12-004 | 12.50 ±0.2 | 0.5 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 31.6 | ±2.0 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 0.6 OD, 12.5mm Dia., IR Neutral Density Filter | 12-005 | 12.50 ±0.2 | 0.6 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 25.0 | ±2.0 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 0.7 OD, 12.5mm Dia., IR Neutral Density Filter | 12-006 | 12.50 ±0.2 | 0.7 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 20.0 | ±2.0 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 0.8 OD, 12.5mm Dia., IR Neutral Density Filter | 12-007 | 12.50 ±0.2 | 0.8 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 15.8 | ±2.0 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 0.9 OD, 12.5mm Dia., IR Neutral Density Filter | 12-008 | 12.50 ±0.2 | 0.9 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 12.6 | ±1.5 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 1.0 OD, 12.5mm Dia., IR Neutral Density Filter | 12-009 | 12.50 ±0.2 | 1.0 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 10.0 | ±1.5 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 1.3 OD, 12.5mm Dia., IR Neutral Density Filter | 12-013 | 12.50 ±0.2 | 1.3 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 5.0 | ±1.3 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 1.5 OD, 12.5mm Dia., IR Neutral Density Filter | 12-014 | 12.50 ±0.2 | 1.5 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 3.2 | ±0.70 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 2.0 OD, 12.5mm Dia., IR Neutral Density Filter | 12-015 | 12.50 ±0.2 | 2.0 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 1.0 | ±0.25 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 2.5 OD, 12.5mm Dia., IR Neutral Density Filter | 12-016 | 12.50 ±0.2 | 2.5 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 0.32 | ±0.1 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 3.0 OD, 12.5mm Dia., IR Neutral Density Filter | 12-017 | 12.50 ±0.2 | 3.0 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 0.10 | +0.08/-0.05 | Neutral Density Filter | 2000 - 14,000 | <10 |
| IR中性密度滤光片， 0.3 OD， 25mm直径 | 64-353 | 25.00 ±0.2 | 0.3 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 50.0 | ±4.0 | Neutral Density Filter | 2000 - 14,000 | <10 |
| IR中性密度滤光片， 0.5 OD， 25mm直径 | 64-354 | 25.00 ±0.2 | 0.5 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 31.6 | ±2.0 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 0.6 OD，25mm直径，IR 中性密度滤光片 | 87-197 | 25.00 ±0.2 | 0.6 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 25.0 | ±2.0 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 0.7 OD, 25mm Dia., IR Neutral Density Filter | 12-000 | 25.00 ±0.2 | 0.7 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 20.0 | ±2.0 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 0.8 OD, 25mm Dia., IR Neutral Density Filter | 12-001 | 25.00 ±0.2 | 0.8 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 15.8 | ±2.0 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 0.9 OD，25mm直径，IR 中性密度滤光片 | 87-198 | 25.00 ±0.2 | 0.9 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 12.6 | ±1.5 | Neutral Density Filter | 2000 - 14,000 | <10 |
| IR中性密度滤光片， 1.0 OD， 25mm直径 | 64-355 | 25.00 ±0.2 | 1.0 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 10.0 | ±1.5 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 1.3 OD，25mm直径，IR 中性密度滤光片 | 87-199 | 25.00 ±0.2 | 1.3 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 5.0 | ±1.3 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 1.5 OD，25mm直径，IR 中性密度滤光片 | 87-200 | 25.00 ±0.2 | 1.5 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 3.2 | ±0.7 | Neutral Density Filter | 2000 - 14,000 | <10 |
| IR中性密度滤光片， 2.0 OD， 25mm直径 | 64-356 | 25.00 ±0.2 | 2.0 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 1.0 | ±0.25 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 2.5 OD, 25mm Dia., IR Neutral Density Filter | 12-002 | 25.00 ±0.2 | 2.5 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 0.32 | ±0.1 | Neutral Density Filter | 2000 - 14,000 | <10 |
| IR中性密度滤光片， 3.0 OD， 25mm直径 | 64-357 | 25.00 ±0.2 | 3.0 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 0.10 | +0.08/-0.05 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 0.3 OD, 25mm Dia., AR Coated, IR Neutral Density Filter | 12-243 | 25.00 ±0.2 | 0.3 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 50.0 | ±4.0 | Neutral Density Filter | 5800 - 6400 | <10 |
| 0.5 OD, 25mm Dia., AR Coated, IR Neutral Density Filter | 12-244 | 25.00 ±0.2 | 0.5 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 31.6 | ±2.0 | Neutral Density Filter | 5800 - 6400 | <10 |
| 1.0 OD, 25mm Dia., AR Coated, IR Neutral Density Filter | 12-245 | 25.00 ±0.2 | 1.0 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 10.0 | ±1.5 | Neutral Density Filter | 5800 - 6400 | <10 |
| 2.0 OD, 25mm Dia., AR Coated, IR Neutral Density Filter | 12-246 | 25.00 ±0.2 | 2.0 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 1.0 | ±0.25 | Neutral Density Filter | 5800 - 6400 | <10 |
| IR中性密度滤光片， 0.3 OD， 50mm直径 | 64-358 | 50.00 ±0.2 | 0.3 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 50.0 | ±4.0 | Neutral Density Filter | 2000 - 14,000 | <10 |
| IR中性密度滤光片， 0.5 OD， 50mm直径 | 64-359 | 50.00 ±0.2 | 0.5 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 31.6 | ±2.0 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 0.6 OD，50mm直径，IR 中性密度滤光片 | 87-201 | 50.00 ±0.2 | 0.6 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 25.0 | ±2.0 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 0.9 OD，50mm直径，IR 中性密度滤光片 | 87-202 | 50.00 ±0.2 | 0.9 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 12.6 | ±1.5 | Neutral Density Filter | 2000 - 14,000 | <10 |
| IR中性密度滤光片， 1.0 OD， 50mm直径 | 64-360 | 50.00 ±0.2 | 1.0 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 10.0 | ±1.5 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 1.3 OD，50mm直径，IR 中性密度滤光片 | 87-203 | 50.00 ±0.2 | 1.3 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 5.0 | ±1.3 | Neutral Density Filter | 2000 - 14,000 | <10 |
| 1.5 OD，50mm直径，IR 中性密度滤光片 | 87-204 | 50.00 ±0.2 | 1.5 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 3.2 | ±0.7 | Neutral Density Filter | 2000 - 14,000 | <10 |
| IR中性密度滤光片， 2.0 OD， 50mm直径 | 64-361 | 50.00 ±0.2 | 2.0 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 1.0 | ±0.25 | Neutral Density Filter | 2000 - 14,000 | <10 |
| IR中性密度滤光片， 3.0 OD， 50mm直径 | 64-362 | 50.00 ±0.2 | 3.0 | Germanium (Ge) | Metallic Based ND | 80-50 | 1.00 ±0.2 | 0.10 | +0.08/-0.05 | Neutral Density Filter | 2000 - 14,000 | <10 |
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