45-916 12mm Dia. x -12 FL; VIS-NIR Coated; Plano-Concave Lens 400-1000nm
- Type
- Lens
- Subtype
- Spherical Lens (Plano-Concave)
- Brand
- Edmund Optics
Properties
- Shape
- Circular
- Diameter
- 12 mm
- EFL
- -12 mm
- BFL
- -13.23 mm
- R1
- -9.42 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
45-916 12mm Dia. x -12 FL; VIS-NIR Coated; Plano-Concave Lens 400-1000nm
The 45-916 is a Plano-Concave Spherical Lens with a 12mm diameter, sourced from the reputable optical components vendor, Edmund Optics. This lens is designed for use within the Visible to Near-Infrared (VIS-NIR) spectrum, specifically catering to wavelengths between 400-1000nm.
The lens's geometry is characterized by its concave base shape, with a center thickness of 2.2mm and an edge thickness of 4.12mm. The effective focal length (EFL) is -12mm, and the front and back focal lengths are -9.42mm and -13.23mm respectively. The lens's inner and outer radii are both zero, indicating a uniform curvature across the lens surface.
The 45-916 is fabricated from the high-quality Schott N-SF11 material, a lead-silicate glass known for its excellent optical properties and durability. This material is particularly suitable for use in the VIS-NIR spectrum due to its low autofluorescence and high transmittance.
The lens features a broadband anti-reflection coating, specifically the EDM VIS-NIR 0SP2002000 coating, on both the front and back surfaces. This coating is designed to minimize surface reflections and increase transmission within the specified wavelength range, thereby enhancing the overall performance and efficiency of the lens.
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