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KBX139 50.8 mm Dia. x 38.1 mm FL; Uncoated; Double-Convex Lens

KBX139 50.8 mm Dia. x 38.1 mm FL; Uncoated; Double-Convex Lens

Type
Lens
Subtype
Spherical Lens (Convex-Convex)
Brand
MKS/Newport
Product webpage
MKS/Newport products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
50.8 mm
EFL
38.1 mm
BFL
28.54 mm
R1
34.44 mm
R2
-34.44 mm

Material

Name
N-BK7
Dispersion Equation
Sellmeier
n (λ)
1.5167401204613524
λ
589 nm
B1
1.03961212
C1
0.00600069867 μm2
B2
0.231792344
C2
0.0200179144 μm2
B3
1.01046945
C3
103.560653 μm2

KBX139 50.8 mm Dia. x 38.1 mm FL; Uncoated; Double-Convex Lens

The KBX139 is a high-quality, double-convex lens offered by MKS/Newport. This lens, which features a Schott N-BK7 material ID, is designed for use in a wide range of optical applications. The lens has a diameter of 50.8 mm and a focal length of 38.1 mm, making it suitable for systems that require a long focal length.

The KBX139 lens is spherical in shape, with a base shape of circular. The geometry of the lens includes an edge thickness of 3 mm and a center thickness of 25.36 mm. The lens's effective focal length (EFL) is 38.1 mm, and its back focal length (BFL) is 28.54 mm. The lens's inner and outer radii are both 0, indicating a symmetrical design.

This lens is uncoated, which means it does not have any anti-reflective or other coatings applied to its surfaces. While coatings can enhance the performance of a lens in certain applications, an uncoated lens can be a cost-effective solution when such enhancements are not required.

The KBX139 lens is designed for use at a wavelength of 589 nm. It is important to note that the performance of the lens can vary depending on the wavelength of the light it is used with. Therefore, it is crucial to ensure that this lens is suitable for your specific application before purchasing.

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