Capability:
Attribute | Commercial | High Precision |
Typical Material | N-BK7, Fused Silica and Other Optic Glass | |
Typical Dimension (Φ×h)(mm) | 10×7.5, 12.7×9.5, 25.4×19, 38.1×28.5, 50.8×37.5 mm | 10×7.5, 12.7×9.5, 25.4×19, 38×28.5, 50.8×37.5 mm |
Dimension(Φ) Tolerance | +0.0/-0.2 mm | +0.0/ -0.1 mm |
Dimension(h) Tolerance | ±0.3 mm | ±0.1 mm |
Clear Aperture | >85% | >90% |
Deviation | <5” | <3” |
Surface Quality (Scratch-Dig ) | 60-40 (≤25.4×19 mm) 80-50 (>25.4×19 mm) | 40-20 (≤25.4×19 mm) 60-40 (>25.4×19 mm) |
Wavefront Distortion | λ/2@632.8nm (≤25.4×19 mm) λ@632.8nm (>25.4×19 mm) | λ/4@632.8nm (≤25.4×19 mm) λ/2@632.8nm (>25.4×19 mm) |