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89-159 15mm Dia. x 22.5mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm

89-159 15mm Dia. x 22.5mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm

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

Properties

Shape
Circular
Diameter
15 mm
EFL
22.5 mm
BFL
21.29 mm
R1
34.36 mm
R2
-34.36 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

89-159 15mm Dia. x 22.5mm FL; VIS-EXT Coated; Double-Convex Lens VIS-EXT 350-700nm

This is a high-quality double-convex lens, sourced from the renowned optical components manufacturer, Edmund Optics. The lens, identified as the 89-159, is a spherical lens with a base shape of a circle, featuring a diameter of 15mm and a focal length of 22.5mm.

The lens is made from the high-dispersion glass, n-SF11 from Schott, which is known for its excellent optical properties. The lens has a center thickness of 4.2mm and an edge thickness of 2.54mm, providing a robust structure while maintaining a compact form factor.

The lens features a VIS-EXT coating on both the front and back surfaces, which extends its usable wavelength range from 350nm to 700nm. This coating enhances the lens's transmission efficiency and reduces surface reflections, making it ideal for applications in the visible spectrum.

The lens's effective focal length (EFL) is 22.5mm, and its back focal length (BFL) is 21.29mm. The first radius of curvature (R1) is 34.36mm, and the second radius of curvature (R2) is -34.36mm, indicating a strongly converging lens.

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