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49-908 15.0mm Dia. x 18.0mm FL; NIR I Coated; Plano-Convex Lens NIR I 600-1050nm

49-908 15.0mm Dia. x 18.0mm FL; NIR I Coated; Plano-Convex Lens NIR I 600-1050nm

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

49-908 15.0mm Dia. x 18.0mm FL; NIR I Coated; Plano-Convex Lens NIR I 600-1050nm

The 49-908 is a Plano-Convex Spherical Lens, sourced from the reputable optical vendor, Edmund Optics. This lens boasts a 15.0mm diameter and a focal length of 18.0mm, making it suitable for a wide range of optical applications.

The lens is crafted from n-SF5 Schott, a high-quality optical material known for its excellent transmittance and durability. The base shape of the lens is circular, contributing to its versatility in various optical systems.

The 49-908 features a front and back coating of EDM NIR-I STD Curve, a specialized coating designed to optimize performance in the near-infrared spectrum (600-1050nm). This coating enhances the lens's light transmission capabilities and reduces surface reflections, thereby improving overall system efficiency.

The lens's geometry includes a thickness of 1.4mm at the edge and 4.0mm at the center, providing a balanced profile for efficient light transmission. The inner and outer radii are 0mm, indicating a uniform curvature throughout the lens.

The lens's EFL (Effective Focal Length) is 18.0mm, a critical parameter in determining the lens's focusing capabilities. The BFL (Back Focal Length) is 15.61mm, which is the distance from the lens's rear surface to the focal point.

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