49-526 12.0mm Dia. x -15 FL; NIR I Coated; Plano-Concave Lens 600-1050nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12 mm
- EFL
- -15 mm
- BFL
- -16.68 mm
- R1
- -11.77 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
49-526 12.0mm Dia. x -15 FL; NIR I Coated; Plano-Concave Lens 600-1050nm
The 49-526 is a Plano-Concave Lens with a diameter of 12.0mm, a focal length of -15, and a central thickness of 3.0mm, which gradually increases to 4.47mm towards the edge. This lens is sourced from Edmund Optics and is currently in stock.
The lens is made from n-sf11 Schott, a high-index glass with excellent transmittance in the near-infrared (NIR) region. The NIR I coating, applied to both the front and back surfaces, enhances the lens's performance in this spectral range, typically between 600-1050nm. This coating is standard for Edmund Optics and provides a high transmission and low reflectance, making it ideal for NIR applications.
The lens's geometry is spherical, with a radius of curvature of -11.77mm on the concave surface. The back focal length is -16.68mm, and the lens has no inner or outer radii, indicating a simple, plano-concave design.
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