9406040

Clear aperture: >90
Coatings: uncoated
Dimensions tolerance, mm: +0/-0.2
Dimensions, mm: 38.1
Edge thickness, mm: 4
Focal length tolerance, %: ±1
Focal length, mm: +1666
Material: BK7
Protective chamfers: <0.25 mm x 45°
S1 Flatness, PV IR S2 Flatness, PV: <λ/4 @ 632.8 nm
Surface quality, S-D: 40-20