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SLB-20-30N 20.0 mm Dia. x -30.0 mm FL; Plano-Concave Lens Uncoated

SLB-20-30N 20.0 mm Dia. x -30.0 mm FL; Plano-Concave Lens Uncoated

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

Properties

Shape
Circular
Diameter
20 mm
EFL
-30 mm
BFL
-31.3 mm
R1
-15.57 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-20-30N 20.0 mm Dia. x -30.0 mm FL; Plano-Concave Lens Uncoated

The SLB-20-30N is a Plano-Concave Lens with a 20.0 mm diameter and a focal length of -30.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. The lens is made of n-BK7 Schott material, a popular choice for its high refractive index and low dispersion, making it ideal for a wide range of optical applications.

The lens geometry features a thickness edge of 5.6 mm and a thickness center of 2 mm. The inner and outer radii are both 0 mm, indicating a flat surface on one side and a concave surface on the other. The radius of curvature (R1) is -15.57 mm, and the back focal length (BFL) is -31.3 mm.

The lens is uncoated, which means it does not have any additional layers to enhance its optical properties. This may be suitable for applications where anti-reflection or other coatings are not required.

The lens is in stock and available for immediate purchase. For more information, you can visit the vendor's website using the provided weblink.

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