high transparency minimum thickness can be 0.2mm low distortion, low scatter for laser and non-laser applications
BK7 Windows
clear with high transparency
parallel or wedged
the shape can be round, rectangular, stepped or other shapes upon the detailed request.
low distortion, low scatter
for laser and non-laser applications.
AR/HR coating to improve the transmission from UV to IR wavelength
Other coatings are available.
Attribute | Specification |
Material | BK7, Fused Silica, etc. |
Typical Diameter (mm) | ≥2.0mm |
Diameter Tolerance (mm) | ±0.02mm |
Typical Thickness (mm) | ≥0.1mm |
Thickness Tolerance (mm) | ±0.01mm |
Clear Aperture | >90% |
Flatness (per 25mm@633nm) | λ/10 |
Incidence Angle | 0° or 45° |
Surface Quality | 10/5 |
Parallelism | 3 sec |
Bevel (face width x 450) | <0.25mm |
BK7 Windows
