38-521-INK 18.0mm Dia. x 20.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Convex)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 18 mm
- EFL
- 20 mm
- BFL
- 17.59 mm
- R1
- 15.7 mm
Material
- Name
- N-SF11
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.7847141030246312
- λ
- 587.6 nm
- B1
- 1.73759695
- C1
- 0.013188707 μm2
- B2
- 0.313747346
- C2
- 0.0623068142 μm2
- B3
- 1.89878101
- C3
- 155.23629 μm2
38-521-INK 18.0mm Dia. x 20.0mm FL; VIS-NIR; Inked; Plano-Convex Lens VIS-NIR 400-1000nm
The 38-521-INK is a plano-convex lens, a type of spherical lens, sourced from Edmund Optics. This lens, with a diameter of 18.0mm and a focal length of 20.0mm, is designed for use in the visible to near-infrared spectrum, specifically between 400-1000nm.
The lens is made from n-SF11 Schott, a high-index glass with excellent transmittance in the visible and near-infrared regions. The front and back surfaces of the lens are coated with edm visnir0sp2002000, a broadband anti-reflection coating that enhances the lens's performance by reducing surface reflections.
The lens's geometry includes a thickness of 1.46mm at the edge and 4.3mm at the center. The inner radius is 0mm, and the outer radius is also 0mm, indicating a flat back surface. The lens's effective focal length (EFL) is 20.0mm, and the back focal length (BFL) is 17.59mm. The radius of curvature (R1) of the curved surface is 15.7mm.
The lens's web link status is valid and in stock, making it readily available for immediate use. This lens is an excellent choice for applications that require a plano-convex lens with a broad spectral range and high-quality anti-reflection coatings.
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