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SLB-25-35NIR2 25.0 mm Dia. x -35.0 mm FL; Coated; Plano-Concave Lens 750-1550nm

SLB-25-35NIR2 25.0 mm Dia. x -35.0 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
25 mm
EFL
-35 mm
BFL
-36.3 mm
R1
-18.17 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-25-35NIR2 25.0 mm Dia. x -35.0 mm FL; Coated; Plano-Concave Lens 750-1550nm

The SLB-25-35NIR2 is a Plano-Concave Spherical Lens, 25.0 mm in diameter and featuring a focal length of -35.0 mm. This lens is sourced from OptoSigma, a renowned vendor in the optical industry. The lens is made of n-bk7 schott, a high-quality material known for its excellent optical properties.

The lens's geometry is meticulously designed, with an edge thickness of 7 mm and a center thickness of 2 mm. The inner and outer radii are both zero, indicating a uniform curvature. The back focal length is -36.3 mm, slightly longer than the focal length, suggesting a slight divergence of the emerging light rays.

The SLB-25-35NIR2 is coated with Opt IR2, a broadband anti-reflection coating that enhances transmission in the 750-1550nm spectral range. This coating reduces surface reflections, improving the lens's performance in near-infrared applications.

This lens is ideal for use in systems that require a negative lens with a broad spectral response. Its high-quality material, precise geometry, and advanced coating make it a reliable choice for various optical applications.

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