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CLB-2020-250NM 20 x 20 mm N-BK7 Plano-Concave Cylindrical Lens; EFL=-250mm VIS 400-750nm
Type
Lens
Subtype
Cylindrical Lens (Plano-Concave)
Brand
OptoSigma
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Properties
Shape
Rectangular
EFL
-250 mm
R1
-129.75 mm
A
20 mm
B
20 mm
Material
Name
N-BK7
Dispersion Equation
Sellmeier
n (λ)
1.518720636186463
λ
546.1 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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