Circular/Ø25.4mm/OD=3
中密度滤波片用于衰减可见光,降低光的强度,而不改变能量的相对光谱分布为光密度和透过率之间的换算公式为:
光密度:OD
透过率(%):T
OD = Lg(1 / T)
• 光密度范围:0.1-3
• 两种尺寸可供选择
• 支持客制规格
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