中性密度滤光片-吸收型
中性密度濾波片用於衰減可見光，降低光的強度，而不改變能量的相對光譜分佈。光密度和透过率之间的换算公式為：
光密度：OD
透过率(%)：T
OD=Lg(1/T)
• 光密度範圍：0.1-3
• 兩種尺寸可供選擇
• 支持客製規格
| Specifications | |
| Material | Absorptive Glass |
| Dimension Tolerance | +0.0/-0.2mm |
| Thickness Tolerance | ±0.2mm |
| Flatness | 2λ@632.8nm |
| Surface Quality | 80/50 scratch and dig |
| Parallelism | <5 arc minutes |
| Clear Aperture | >90% |
| Design Wavelength | 400-700nm |
| OD Tolerance | ±10% of OD |
| Products | Part No. | Deadline | Price | Quantity | Cart |