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67-518 15.0mm Dia. x 22.5mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm

67-518 15.0mm Dia. x 22.5mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm

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

Properties

Shape
Circular
Diameter
15 mm
EFL
18 mm
BFL
15.61 mm
R1
12.11 mm

Material

Name
N-SF5
Dispersion Equation
Sellmeier
n (λ)
1.6727030184452947
λ
587.6 nm
B1
1.52481889
C1
0.011254756 μm2
B2
0.187085527
C2
0.0588995392 μm2
B3
1.42729015
C3
129.141675 μm2

67-518 15.0mm Dia. x 22.5mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm

This is a 15.0mm diameter by 22.5mm focal length plano-convex lens, specifically designed for use in the near-infrared (NIR) spectrum. The lens is sourced from Edmund Optics, a reputable vendor known for their high-quality optical components.

The lens is made from n-SF5 Schott, a material well-suited for NIR applications due to its low absorption and dispersion characteristics. The lens geometry includes a 1.4mm edge thickness and a 4mm center thickness, with a 12.11mm radius of curvature on the convex side. The effective focal length (EFL) is 18mm, and the back focal length (BFL) is 15.61mm.

The lens features a standard NIR-II coating on both the front and back surfaces, which is designed to enhance transmission in the 750-1550nm range. This coating helps to minimize reflection and absorption losses, thereby improving the overall efficiency and performance of the lens in NIR applications.

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