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Meniscus Spherical Lenses (Ge)

Meniscus Spherical Lenses (Ge)
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Specifications:
Material:
Surface Flatness:
Surface Quality:
Centration Error:
Focal Length Tolerance:
Diameter Tolerance:
Thickness Tolerance:
Clear Aperture:
Absorption:
Durability:
Single Crystal Germanium
< λ/20 @ 10.6μm
< 40/20 (both sides)
≤ 3 arcmin
< ± 0.5% @ 10.6μm
< + 0.000” / - 0.008”
< ± 0.010”
≥ 85% of diameter
≤ 0.1% per surface
Per MIL-M-13508