9594179

Clear aperture: >90% of diameter
Dimensions, mm: Ø15 (+0/-0.5) x 5 (±0.1)
Material: BK7
Parallelism error: <3 arc minutes
ROC S1, mm: Infinity
Surface figure, A: <λ/4 @632.8 nm over CA
Surface figure, B: <λ/4 @632.8 nm over CA
Surface quality: 10-5 S-D