48-698 25mm Dia. x -35 FL; VIS-NIR Coated; Plano-Concave Lens 400-1000nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 25 mm
- EFL
- -35 mm
- BFL
- -36.96 mm
- R1
- -27.47 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
48-698 25mm Dia. x -35 FL; VIS-NIR Coated; Plano-Concave Lens 400-1000nm
The 48-698 is a 25mm diameter Plano-Concave Lens with a -35 FL (focal length) and a Visible to Near-Infrared (VIS-NIR) coating. This lens is sourced from Edmund Optics, a reputable vendor known for its high-quality optical components.
The lens is designed with a base shape of Circular and a Sub Type of Spherical Lens. The geometry of the lens includes a diameter of 25mm, a thickness edge of 6.36mm, and a thickness center of 3.5mm. The effective focal length (EFL) is -35, and the radius of curvature (R1) is -27.47mm. The back focal length (BFL) is -36.96mm, and both the inner and outer radii are 0mm.
The lens is made from n-sf11 Schott, a high-index glass with excellent transmittance in the visible and near-infrared regions. The lens is coated with edm visnir0sp2002000 on both the front and back surfaces, providing broadband anti-reflection coating for 400-1000nm wavelengths.
This lens is ideal for applications that require a plano-concave lens with a broad spectral range, such as imaging systems, beam shaping, and collimation. The VIS-NIR coating ensures high transmission and low reflectance across the visible and near-infrared spectrum, making it suitable for a wide range of optical systems.