Ø20.0*3mm / 1047-1064 nm

对于更高的安全性，激光保护窗口主要用于在激光切割中阻挡杂物飞溅，防止飞溅物损伤镜头。两面镀上高损伤阈值（> 15J / cm2）的增透膜来减少反射。

• 两面镀高损伤阈值的增透膜

• 单面剩余反射率R <0.5 %@1047-1064nm，入射角0度

• 损伤阈值> 15J / cm2,20ns，20Hz，@ 1064nm

Specifications

Material Fused Silica

Dimension Tolerance +0.0/-0.2mm

Thickness Tolerance ±0.2mm

Clear Aperture >80%

Parallelism <1 arc minute

Surface Quality 60/40 scratch and dig

Transmitted Wavefront Distortion <λ@633nm per 25mm

Chamfer <0.5mmx45deg

Coating Both sides AR coated for YAG laser, R<0.5%@1047-1064nm per surface, AOI 0deg, damage threshold >15J/cm2, 20ns, 20Hz, @1064nm