9432823

Clear Aperture: >90
Dimensions tolerance, mm: +0/-0.1
Dimensions, mm: Ø50.8
Material: BK7
Metallic coating on S1: UV enhanced Aluminum Ravg>85% @ 250-600 nm
S1 Flatness, PV: <λ/8 @ 632.8 nm
S1 Surface quality, S-D: 40-20
Thickness tolerance, mm: ±0.1
Thickness, mm: 6
Wedge / Parallelism error: <1arcmin