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69-688 25mm Dia. x 100mm FL; Coated; Si Plano-Convex Lens BBAR 3-5µm

69-688 25mm Dia. x 100mm FL; Coated; Si Plano-Convex Lens BBAR 3-5µm

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

Properties

Shape
Circular
Diameter
25 mm
EFL
100 mm
R1
241.76 mm

Material

Name
Silicon
Dispersion Equation
Sellmeier
n (λ)
3.4176022196178844
λ
10600 nm
B1
10.6684293
C1
0.090912191 μm2
B2
0.003043475
C2
1.287660172 μm2
B3
1.54133408
C3
1218816 μm2

69-688 25mm Dia. x 100mm FL; Coated; Si Plano-Convex Lens BBAR 3-5µm

The 69-688 is a 25mm diameter, 100mm focal length Plano-Convex lens, manufactured by Edmund Optics. This lens is made from silicon, specifically silicon sal vil 1957, and features a Broadband Anti-Reflection (BBAR) coating on both the front and back surfaces, designed to reduce surface reflections and increase transmission across a broad spectrum from 3-5µm.

The lens has a planar surface on one side and a convex surface on the other, with a center thickness of 3mm and an edge thickness of 2.68mm. The radius of curvature for the convex surface is 241.76mm. The lens is designed to be used in a single-element configuration, with an effective focal length of 100mm.

This lens is a Spherical Lens, which means it has a spherical surface, and it falls under the Sub Type of Spherical Lens (Plano-Convex). The lens is circular in shape, making it suitable for a wide range of applications.

The lens is currently in stock and can be purchased directly from the Edmund Optics website using the provided weblink. The link has been verified and is valid at the time of writing.

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