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67-438 2.5mm Dia. x 5.0mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm

67-438 2.5mm Dia. x 5.0mm 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
2.5 mm
EFL
5 mm
BFL
4.57 mm
R1
4.25 mm

Material

Name
N-LASF9
Dispersion Equation
Sellmeier
n (λ)
1.8502442055719617
λ
587.6 nm
B1
2.00029547
C1
0.0121426017 μm2
B2
0.298926886
C2
0.0538736236 μm2
B3
1.80691843
C3
156.530829 μm2

67-438 2.5mm Dia. x 5.0mm FL; NIR II Coated; Plano-Convex Lens NIR II 750-1550nm

The 67-438 is a Plano-Convex lens, a type of spherical lens, sourced from Edmund Optics. This lens boasts a diameter of 2.5mm and a focal length of 5.0mm, making it a compact yet powerful optical component. The lens is made from the material n-lasf9 schott, a detail that could be crucial for users looking for specific material properties.

The lens features a front and back coating of edm nir-ii std curve, which is particularly noteworthy as it enhances the lens' performance in the near-infrared spectrum, specifically between 750nm and 1550nm. This coating makes the lens ideal for applications that require high transmission in the NIR-II range.

The geometry of the lens is also worth noting. It has a thickness of 0.61mm at the edge and 0.8mm at the center. The inner and outer radii are both 0, indicating a flat surface on one side and a curved surface on the other. The radius of curvature (r1) is 4.25mm, and the back focal length (bfl) is 4.57mm. The effective focal length (efl) is 5mm.

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