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SLB-20-150NM 20.0 mm Dia. x -150.0 mm FL; Coated; Plano-Concave Lens 400-700nm

SLB-20-150NM 20.0 mm Dia. x -150.0 mm FL; Coated; Plano-Concave Lens 400-700nm

Type
Lens
Subtype
Spherical Lens (Plano-Concave)
Brand
OptoSigma
Product webpage
OptoSigma products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
20 mm
EFL
-150 mm
BFL
-151.3 mm
R1
-77.85 mm

Material

Name
N-BK7
Dispersion Equation
Sellmeier
n (λ)
1.518720636186463
λ
546.1 nm
B1
1.03961212
C1
0.00600069867 μm2
B2
0.231792344
C2
0.0200179144 μm2
B3
1.01046945
C3
103.560653 μm2

SLB-20-150NM 20.0 mm Dia. x -150.0 mm FL; Coated; Plano-Concave Lens 400-700nm

The SLB-20-150NM is a Plano-Concave Spherical Lens, boasting a diameter of 20.0 mm and a focal length of -150.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. The lens is made from n-bk7 schott material, a popular choice due to its excellent optical properties.

The lens's geometry is meticulously designed, with a thickness edge of 2.6 mm and a thickness center of 2.0 mm. The inner and outer radii are both zero, indicating a circular shape. The lens's effective focal length (EFL) is -150.3 mm, and the back focal length (BFL) is -151.3 mm, demonstrating its concave nature.

The SLB-20-150NM is coated with Opt M on both the front and back surfaces, enhancing its performance in the 400-700nm wavelength range. This coating ensures high transmission and low reflection, making it suitable for various applications.

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