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SLB-25-200NIR2 25.0 mm Dia. x -200.0 mm FL; Coated; Plano-Concave Lens 750-1550nm

SLB-25-200NIR2 25.0 mm Dia. x -200.0 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
-200 mm
BFL
-201.3 mm
R1
-103.8 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-25-200NIR2 25.0 mm Dia. x -200.0 mm FL; Coated; Plano-Concave Lens 750-1550nm

OptoSigma offers the SLB-25-200NIR2, a Plano-Concave Spherical Lens with a 25.0 mm diameter and a focal length of -200.0 mm. This lens is designed for use within the wavelength range of 750-1550nm, making it suitable for near-infrared (NIR) applications.

The lens is made from n-BK7 Schott, a widely used optical glass due to its excellent optical properties. The lens features a plano-concave geometry, meaning one side is flat, and the other side is curved inward. This particular lens has an inner radius of 0 mm and an outer radius of 0 mm. The edge thickness measures 2.8 mm, while the center thickness is 2 mm.

The SLB-25-200NIR2 comes with a broadband anti-reflection coating, specifically the opt IR2 coating, on both the front and back surfaces. This coating enhances the lens's performance by reducing surface reflections, thereby increasing transmission.

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