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49-526 12.0mm Dia. x -15 FL; NIR I Coated; Plano-Concave Lens 600-1050nm

49-526 12.0mm Dia. x -15 FL; NIR I Coated; Plano-Concave Lens 600-1050nm

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

Properties

Shape
Circular
Diameter
12 mm
EFL
-15 mm
BFL
-16.68 mm
R1
-11.77 mm

Material

Name
N-SF11
Dispersion Equation
Sellmeier
n (λ)
1.7847141030246312
λ
587.6 nm
B1
1.73759695
C1
0.013188707 μm2
B2
0.313747346
C2
0.0623068142 μm2
B3
1.89878101
C3
155.23629 μm2

49-526 12.0mm Dia. x -15 FL; NIR I Coated; Plano-Concave Lens 600-1050nm

The 49-526 is a Plano-Concave Lens with a diameter of 12.0mm, a focal length of -15, and a central thickness of 3.0mm, which gradually increases to 4.47mm towards the edge. This lens is sourced from Edmund Optics and is currently in stock.

The lens is made from n-sf11 Schott, a high-index glass with excellent transmittance in the near-infrared (NIR) region. The NIR I coating, applied to both the front and back surfaces, enhances the lens's performance in this spectral range, typically between 600-1050nm. This coating is standard for Edmund Optics and provides a high transmission and low reflectance, making it ideal for NIR applications.

The lens's geometry is spherical, with a radius of curvature of -11.77mm on the concave surface. The back focal length is -16.68mm, and the lens has no inner or outer radii, indicating a simple, plano-concave design.

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