In stock
Focal length, mm: -250 (±1%)
Transmitted wavefront, PV: <λ/2 @ 632.8 nm
Surface quality, S-D: 40-20
S1 Flatness, PV IR S2 Flatness, PV: <λ/4 @ 632.8 nm
Material: N-BK7
Edge thickness, mm: >4
Dimensions, mm: Ø25.4 (+0/-0.6)
Coatings: AR(R<0.3%)@1064 nm, AOI=0°
Clear Aperture: >90
Adhesion and durability: Per MIL-C-675A
Required documents: Reflectivity curve of both faces
Transmitted wavefront, PV: <λ/2 @ 632.8 nm
Surface quality, S-D: 40-20
S1 Flatness, PV IR S2 Flatness, PV: <λ/4 @ 632.8 nm
Material: N-BK7
Edge thickness, mm: >4
Dimensions, mm: Ø25.4 (+0/-0.6)
Coatings: AR(R<0.3%)@1064 nm, AOI=0°
Clear Aperture: >90
Adhesion and durability: Per MIL-C-675A
Required documents: Reflectivity curve of both faces
