Ø50.8*6.35mm / 351-355 nm

相比於N-BK7，UV熔融石英窗具有低失真，優異的平行度，低體積散射和精細的表面質量，對於給定波長還提供較低的折射率。      

• 根據不同波段需求選擇型號

• 鍍膜特性：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