Ø50.8*6.35mm / 632.8 nm

N-BK7在光谱的可见光和近红外部分提供优异的透射率。从每种基材材料制造的高精度窗口，用于各种激光和工业应用。

• 根据不同波段需要选择型号

• 镀膜特性：R <0.25％，0度入射

Specifications

Material BK7 Grade A, UV Grade Fused Silica

Dimension Tolerance +0.0/-0.2mm

Thickness Tolerance ±0.2mm

Clear Aperture >90%

Parallelism <30 arc seconds

Surface Quality 60/40

Wavefront Distortion <λ/8@633nm per 25mm

Chamfer Protected <0.5mmx45deg

Coating R<0.25% per suface, AOI=0deg

Damage Threshold BK7: >5J/cm2, 20ns, 20Hz, @1064nm

　 UVFS: >10J/cm2, 20ns, 20Hz, @1064nm