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SLB-30-70NIR2 30.0 mm Dia. x -70.0 mm FL; Coated; Plano-Concave Lens 750-1550nm

SLB-30-70NIR2 30.0 mm Dia. x -70.0 mm FL; Coated; Plano-Concave Lens 750-1550nm

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

Properties

Shape
Circular
Diameter
30 mm
EFL
-70 mm
BFL
-71.3 mm
R1
-36.33 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-30-70NIR2 30.0 mm Dia. x -70.0 mm FL; Coated; Plano-Concave Lens 750-1550nm

OptoSigma presents the SLB-30-70NIR2, a Plano-Concave Lens with a 30.0 mm diameter and a focal length of -70.0 mm, specifically designed for the spectral range of 750-1550nm. This lens is made of n-bk7 schott material, a popular choice for its excellent optical properties and versatility.

The lens geometry is characterized by a thickness edge of 5.2 mm and a thickness center of 2 mm, ensuring robustness and precision. The inner and outer radii are both zero, indicating a planar surface on one side and a concave surface on the other. The radius of curvature (R1) is -36.33 mm, and the back focal length (BFL) is -71.3 mm, further detailing the lens's concave shape.

The SLB-30-70NIR2 is coated with Opt IR2 on both the front and back surfaces, enhancing its performance in the specified infrared spectrum. This coating reduces reflection and increases transmission, making it ideal for applications that require high-quality imaging or light transmission in the near and shortwave infrared ranges.

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