Material | BK7 or UV fused silica |
Diameter Tolerance | +0/-0.15mm |
Thickness Tolerance | ±0.25mm |
Clear Aperture | >Central 85% of diameter |
Parallelism | <5″ |
Surface Quality | 20/10 |
Transmitted Wavefront | λ/10 @632.8nm |
Brewster Angle (θ) | 56.6° @588nm(BK7) 56.1° @308nm(UVFS) |
Chamfers | <0.35mm face width ×45° |