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89-055 20.0mm Dia. x 20.0mm FL; Plano-Convex Lens Laser V-Coat 1550nm

89-055 20.0mm Dia. x 20.0mm FL; Plano-Convex Lens Laser V-Coat 1550nm

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

Properties

Shape
Circular
Diameter
20 mm
EFL
20 mm
BFL
17.42 mm
R1
15.7 mm

Material

Name
N-SF11
Dispersion Equation
Sellmeier
n (λ)
1.74339920266441
λ
1550 nm
B1
1.73759695
C1
0.013188707 μm2
B2
0.313747346
C2
0.0623068142 μm2
B3
1.89878101
C3
155.23629 μm2

89-055 20.0mm Dia. x 20.0mm FL; Plano-Convex Lens Laser V-Coat 1550nm

The 89-055 is a Plano-Convex Spherical Lens, a high-quality optical component sourced from Edmund Optics. This lens boasts a 20.0mm diameter and a 20.0mm focal length, making it suitable for a wide range of applications.

The lens is crafted from n-sf11 Schott, a material known for its excellent optical properties, particularly in the infrared spectrum. The base shape is circular, contributing to its versatility in various optical systems.

The geometry of the lens includes a 1mm edge thickness and a 4.6mm center thickness, with an effective focal length (EFL) of 20mm. The radius of curvature (R1) is 15.7mm, and the back focal length (BFL) is 17.42mm. The lens does not have an inner or outer radius.

The 89-055 features a V-coat designed for 1550nm, providing superior laser damage resistance and high transmission. This coating is applied to both the front and back surfaces of the lens, ensuring optimal performance in its intended application.

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