In stock
Centration error: <3 arcmin
S1 ROC, mm: -114.25 ±0.5%
S2: Uncoated
S2 Surface flatness, PV: <λ/4 @ 632.8 nm
S1: PR(R=95 +2/-3%) @ 397 nm + PR (R=95 +2/-4%) @ 854 nm + PR (R=95 +2/-4%) @ 866 nm
S1/S2 Surface quality, S-D: 40-20
S1 Surface irregularity, PV: <λ/4 @ 632.8 nm (before coatings)
Protective chamfers: <0.25 mm x 45°
Material: UVFS (Corning 7980 0F)
Focal length, mm: -250
Dimensions, mm: Ø12.7 (+0/-0.1)
Wavelength, nm: 632.8
Clear Aperture: >90
Center thickness, mm: 2 (±0.1)
Coatings:
S1 ROC, mm: -114.25 ±0.5%
S2: Uncoated
S2 Surface flatness, PV: <λ/4 @ 632.8 nm
S1: PR(R=95 +2/-3%) @ 397 nm + PR (R=95 +2/-4%) @ 854 nm + PR (R=95 +2/-4%) @ 866 nm
S1/S2 Surface quality, S-D: 40-20
S1 Surface irregularity, PV: <λ/4 @ 632.8 nm (before coatings)
Protective chamfers: <0.25 mm x 45°
Material: UVFS (Corning 7980 0F)
Focal length, mm: -250
Dimensions, mm: Ø12.7 (+0/-0.1)
Wavelength, nm: 632.8
Clear Aperture: >90
Center thickness, mm: 2 (±0.1)
Coatings:
