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45-710-INK 20.0mm Dia. x 75.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm

45-710-INK 20.0mm Dia. x 75.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm

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

Properties

Shape
Circular
Diameter
30 mm
EFL
75 mm
BFL
70.95 mm
R1
38.76 mm

Material

Name
N-BK7
Dispersion Equation
Sellmeier
n (λ)
1.5167984379050088
λ
587.6 nm
B1
1.03961212
C1
0.00600069867 μm2
B2
0.231792344
C2
0.0200179144 μm2
B3
1.01046945
C3
103.560653 μm2

45-710-INK 20.0mm Dia. x 75.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm

The 45-710-INK is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a diameter of 20.0mm, is designed for use in the visible to near-infrared (VIS-NIR) spectrum, specifically between 400-1000nm. The lens has a front ( convex ) radius of curvature of 38.76mm and a back ( planar ) radius of curvature of 0mm.

The lens has an effective focal length (EFL) of 75.0mm, which is the distance from the lens's center to the focal point when the lens is imaging an object at infinity. The lens's thickness at the edge is 3.08mm, while its center thickness is 6.1mm. The back focal length (BFL), which is the distance from the lens's rear nodal point to its rear principal plane, is 70.95mm.

The lens is made from N-BK7 Schott glass, a popular choice for its high refractive index and low dispersion. The lens is coated with edm visnir0sp2002000 on both the front and back surfaces, which is a broadband anti-reflection coating designed for the VIS-NIR region. This coating helps to reduce surface reflections and increase transmission, making the lens more efficient in its intended application.

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