- Material: N-BK7
- Angle separation: 90° +/- 5’ - on request +/- 1’ à +/-10’’
- Surface flatness: λ/2 to λ (550 nm) – on request λ/4 to λ/10
- Assembly: cemented / on request : optically contacted
- The four outer faces are all Anti-Reflection (AR) coated