material: fused silica, BK7 and other optical glass
Incident Angle: 45 degrees
Dimensional tolerance: +/- 0.1mm
Thickness tolerance: ± 0.1mm
Light transmission aperture: > 90%
Parallelism: < 30 seconds
Surface quality: 40/20
Surface shape: λ/4 or λ/10 @632.8nm per 25mm
Chamfer: Protective < 0.5mmx45°
Coating: One side is coated with a medium beam splitting film, and the other side is coated with an anti-reflection film. Damage threshold: > 5J/cm2, 20ns, 20Hz, @1064nm