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Features
The Window is made from BK7 material, which has transparent range from 330-2100nm. The refractive index is 1.5164 at 588nm. The BK7 window has good performance over visible and near IR spectrum for most application.
Specifications
Specifications:
Material: BK7
Diameter Tolerance: +0.0, -0.1mm
Thickness Tolerance: ± 0.2mm
Clear Aperture: >80%
Parallelism: 1'(Standard), 10"(High Precision)
Surface Quality: 60/40(Standard), 10/5(High Precision)
Wavefront Distortion: l(Standard), λ/10(High Precision) per 25mm @632.8nm
Bevel: <0.25mm X 45°
Coating: Uncoated



Standard Precision High Precision
Part No. φ(mm) T (mm) Part No. φ (mm) T (mm)
WIN1-101 10 3 WIN1-201 10 6
WIN1-102 12.7 3 WIN1-202 12.7 6
WIN1-103 15 3 WIN1-203 15 6
WIN1-104 25.4 3 WIN1-204 25.4 6.35
WIN1-105 50.8 3 WIN1-205 50.8 6.35