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63-657 40mm Dia. x 120mm FL; NIR I Coated; Double-Convex Lens NIR I 600-1050nm

63-657 40mm Dia. x 120mm FL; NIR I Coated; Double-Convex Lens NIR I 600-1050nm

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

Properties

Shape
Circular
Diameter
40 mm
EFL
120 mm
BFL
117.67 mm
R1
122.83 mm
R2
-122.83 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

63-657 40mm Dia. x 120mm FL; NIR I Coated; Double-Convex Lens NIR I 600-1050nm

The 63-657 is a high-quality double-convex lens, boasting a 40mm diameter and a focal length of 120mm. This lens is sourced from the reputable optical vendor, Edmund Optics, and is readily available for your optical system needs.

The lens is crafted from the renowned N-BK7 glass, a material known for its excellent optical properties. The base shape of the lens is circular, and it features a double-convex geometry, with radii of curvature R1 and R2 being 122.83mm and -122.83mm, respectively. This geometry results in a beneficial effect of reducing spherical aberration, thereby enhancing the image quality.

The lens's edge thickness measures 3.72mm, while the center thickness is 7mm, providing robustness and durability. The effective focal length (EFL) is 120mm, and the back focal length (BFL) is 117.67mm. The lens has no inner or outer radius specified, indicating a uniform curvature throughout.

The 63-657 lens comes with a standard NIR I coating on both the front and back surfaces. This anti-reflective coating is designed for the 600-1050nm wavelength range, ensuring optimal performance in near-infrared applications. The coating helps minimize surface reflections, thereby increasing transmission and improving overall system efficiency.

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