N-BK7 Windows And H-K9L Windows
Made from BK7 material, which has transparent range from 330-2100nm. The refractive index is 1.5168 at 587.6nm. The BK7 window has good performance over visible and near IR spectrum for most application.
Features
N-BK7 Windows and H-K9L Windows
Made from BK7 material, which has transparent range from 330-2100nm. The refractive index is 1.5168 at 587.6nm. The BK7 window has good performance over visible and near IR spectrum for most application.
H-K9L is the equivalent material to N-BK7. N-BK7 is made of by Schott Germany, H-K9L is made by CDGM China.
H-K9L products price is better than N-BK7.
AOST could make customized N-BK7 or H-K9L windows products
N-BK7 Windows and H-K9L Windows SPECIFICATION:
| Material: | BK7 grade A optical glass or H-K9L |
| Dimension Tolerance: | +0.0, -0.1mm |
| Thickness Tolerance: | ± 0.1mm |
| Surface quality: | 60/40(Standard), 10/5(High Precision) |
| Clear Aperture: | >85% |
| Flatness: | λ(Standard), λ/10(High Precision) per 25mm@633nm |
| Parallelism: | 1′ (Standard), 10″ (High Precision) |
| Bevel: | <0.25mm X 45° |
| Coating: | Upon requirement |
