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Edmund Optics
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69-820 12.5 x 25 mm N-BK7 Illumination Grade Plano-Concave Cylindrical Lens; EFL=-75 mm NIR I 600-1050nm
Type
Lens
Subtype
Cylindrical Lens (Plano-Concave)
Brand
Edmund Optics
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Properties
Shape
Rectangular
EFL
-75 mm
BFL
-75 mm
R1
-38.76 mm
Material
Name
N-BK7
Dispersion Equation
Sellmeier
n (λ)
1.5167984379050088
λ
587.6 nm
B1
1.03961212
C1
0.00600069867 μm
2
B2
0.231792344
C2
0.0200179144 μm
2
B3
1.01046945
C3
103.560653 μm
2
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