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32-990 20mm Dia. x -20mm FL; Uncoated; Double-Concave Lens

32-990 20mm Dia. x -20mm FL; Uncoated; Double-Concave Lens

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

Properties

Shape
Circular
Diameter
20 mm
EFL
-20 mm
BFL
-20.55 mm
R1
-31.82 mm
R2
31.82 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

32-990 20mm Dia. x -20mm FL; Uncoated; Double-Concave Lens

The 32-990 is a spherical lens with a base shape of a circle, sourced from the reputable vendor, Edmund Optics. This lens falls under the category of a Spherical Lens (Concave-Concave) and is uncoated. The lens has a diameter of 20mm and a thickness at the edge of 5.03mm, while the center thickness is 2mm. The effective focal length (EFL) of this lens is -20mm, making it a double-concave lens.

The lens's first radius of curvature (R1) is -31.82mm, and the second radius of curvature (R2) is 31.82mm. The back focal length (BFL) is -20.55mm. The lens's inner and outer radii are both 0mm. The lens is made of n-sf11 Schott material, a high-index glass often used in optical systems that require high numerical aperture and excellent optical performance.

This lens is designed to operate at a wavelength of 587.6nm. The provided web link allows users to access more information about the lens and its availability in stock. This detailed description should assist users in understanding the lens's properties and making informed decisions when selecting optical components with similar specifications.

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