BK7 window from FuzhouSiaon Optoelectronic
Fuzhou Siaon Optoelectronic Technology Co., Ltd. provideBK7 window
BK7 window is the most common type of window, it has good performance over visible and near infrared wavelength region. The refractive index is 1.5168 at 587.6nm.
Material:BK7 Grade A Optical Glass
Dimension Tolerance:+0.0/-0.2mm
Thickness Tolerance:+0.0/-0.2mm
Clear Aperture: >85%
Flatness: λ/2@632.8nm
Surface Quality:60-40
Parallelism:1 arc min
Bevel:0.2mm to 0.5mm x 45°
Coating:Uncoated